What number is greatest 4.046 4.006 4.0046 0r 4.04?

In order from greatest to smallest :-

1. 4.046 (4.04 + 0.006)
2. 4.04 (4.006 + 0.034)
3. 4.006 (4.0046 + 0.0014)
4. 4.0046