Answer:
56.560
Explanation:
56.5598571145
The thousandth digit is the 9 in bold above.
Drop the digits to the right of the thousandths place.
56.559
Look at the first digit to the right of the thousandths place.
56.5598571145
It's an 8. Since 8 is greater than 4, the thousandths digit goes up by 1.
56.559 becomes 56.560
Answer: 56.560