The answer would be the hundreds place
To find out you go from right to left.
For this problem you would start with 9
The 9 is in the units place
Then you go to 2
The 2 is in the tens place
Therefore the 3 is in the hundreds place
If you want to find out all the places to this problem here it is as follow:
4- ten thousands
5- thousands
3- hundreds
2- tens
9- units
Hope this helps! :3