Given the task definition and input, reply with output. In this task, you will be given a list of numbers. The goal is to divide all the numbers in the list by a constant such that the sum of the resulting list is 1. The output should be rounded to 3 decimals.

[121.553, 17.688, -85.745, -19.67]

[ 3.593  0.523 -2.535 -0.582]