You leave it exactly as it is! Do not alter, amend or edit it in any way!
It is: 3000 because 457 is less than 500 so you round down instead of up
3000
3000
How to round 1,354,029 to the nearest thousand
3000
3000
3388 rounded to the nearest thousand is 3000
3492 rounded to the nearest thousand is 3000
3000.
3000
It is 3000.
3000