Answer
3.661
Work Step by Step
We are asked to round 3.66062 to the nearest thousandth.
Step 1. Draw a cut-off line after the thousandths place. We are cutting off the 6 and 2. They will be dropped.
Step 2. We look at the first digit after the cut-off line, which is 6.
Step 3. Since this number is greater than or equal to 5, we round up the digit in the thousandths place by 1 to 1.
Therefore, 3.66062 rounded to the nearest thousandth is 3.661.