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.
Q: [63.185, -89.756, -55.735, 243.508]
A: 
[ 0.392 -0.557 -0.346  1.511]