'Fourth' in the Bible

The fourth kingdom shall be strong as iron, because iron breaks in pieces and subdues all things; and as iron that crushes all these, shall it break in pieces and crush.

He answered, Look, I see four men loose, walking in the midst of the fire, and they are unharmed; and the aspect of the fourth is like a son of the gods.

After this I saw in the night visions, and, behold, a fourth animal, awesome and powerful, and strong exceedingly; and it had great iron teeth; it devoured and broke in pieces, and stamped the residue with its feet: and it was diverse from all the animals that were before it; and it had ten horns.

Then I desired to know the truth concerning the fourth animal, which was diverse from all of them, exceedingly terrible, whose teeth were of iron, and its nails of brass; which devoured, broke in pieces, and stamped the residue with its feet;

Thus he said, The fourth animal shall be a fourth kingdom on earth, which shall be diverse from all the kingdoms, and shall devour the whole earth, and shall tread it down, and break it in pieces.

Now will I show you the truth. Behold, there shall stand up yet three kings in Persia; and the fourth shall be far richer than they all: and when he has grown strong through his riches, he shall stir up all against the realm of Greece.