Definition: 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.
Input: [90.253, 60.283, 43.622, -65.891, 85.193, -84.805, 121.402]

[ 0.361  0.241  0.174 -0.264  0.341 -0.339  0.485]