I believe the European Union will be the basis for the Fourth Beast - IMHO (significant gov’t - a world gov’t)
Daniel 7:7-8 King James Version (KJV)
7 After this I saw in the night visions, and behold a fourth beast, dreadful and terrible, and strong exceedingly; and it had great iron teeth: it devoured and brake in pieces, and stamped the residue with the feet of it: and it was diverse from all the beasts that were before it; and it had ten horns.
8 I considered the horns, and, behold, there came up among them another little horn, before whom there were three of the first horns plucked up by the roots: and, behold, in this horn were eyes like the eyes of man, and a mouth speaking great things.
Daniel 7:23 King James Version (KJV)
23 Thus he said, The fourth beast shall be the fourth kingdom upon earth, which shall be diverse from all kingdoms, and shall devour the whole earth, and shall tread it down, and break it in pieces.
Well and there is this:
Deutsche Mark, D-Mark and Mark
One Mark equals $.666...
The dem in me came out, I made that last part up.