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: [78.486, 117.12, 228.946, -15.271, 155.601, 108.097, -91.269, 73.511, 211.817]

[ 0.091  0.135  0.264 -0.018  0.179  0.125 -0.105  0.085  0.244]