To round 972381.8935 to the nearest thousandth, follow these steps:
Identify the thousandth place: In the number 972381.8935, the thousandth place is the third digit after the decimal point, which is 3.
Look at the ten-thousandth place: The digit in the ten-thousandth place (the fourth digit after the decimal point) is 5.
Apply rounding rules: Since the digit in the ten-thousandth place (5) is greater than or equal to 5, you round the thousandth place up by 1.
Final rounded result: The thousandth place (3) becomes 4, so the number rounds to 972381.894
Thus, 972381.8935 rounded to the nearest thousandth is 972381.894