Round 87.8404824053 to 4 decimal places.

87.8405

The digit 8 in the 5th decimal place is significant (5 or larger), so the digit 4 in the 4th decimal place has to be raised by 1.

87.8405

Step-by-step explanation:

Given : 87.8404824053

To find : Round to 4 decimal places.

Solution : We have given

87.8404824053.

We need to round it to 4 decimal place.

Identify the 5th digit after decimal It is 8.

It is greater than 5 so the number should be rounded up 4th digit increased by 1 and other terms become zero,

87.8405

Therefore, 87.8405