Given the value;
We are asked to round the figure to the nearest thousand.
Step-by-step explanation
To round to the nearest thousand, we look at the last three digits. If these digits are 500 or greater, then we round the thousands digit up, and if they are less than 500, then we round down, keeping the thousand's digit the same.
Since the digits are greater than 500 we will round up 3633 to the closest thousand.
Answer: