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: [213.963, 31.55, 154.671, -48.164, 191.335, -7.431, 218.831]

[ 0.283  0.042  0.205 -0.064  0.254 -0.01   0.29 ]