4,600 to the nearest hundred place is just 4,600. This is because it is already rounded out. The "6" in the number is followed by two 0s.
4600
4600
4600
4,600
0
The answer will depend on the degree to which the number is rounded. Without any indication of that, it is not possible to answer the question sensibly.
4600
It is 4600.
It is: 4600
4600
4600
4600