Identify Decimal Places: Identify the fourth decimal place to determine how to round the third decimal place.The number given is 3.568107643. The third decimal place is 8, and the fourth decimal place is 1.To round to three decimal places, we look at the fourth decimal place. If it is 5 or greater, we round up the third decimal place. If it is less than 5, we keep the third decimal place as it is.In this case, the fourth decimal place is 1, which is less than 5.
Determine Rounding: Round the number to three decimal places.Since the fourth decimal place is 1, we do not round up the third decimal place. Therefore, the number 3.568107643 rounded to three decimal places is 3.568.