To find your realized income per month, you can set up the equation based on the information that your housing and fixed expenses are 33% of your realized income.
Let \( I \) be your realized income per month. According to the problem:
\[ 0.33I = 685.70 \]
To find \( I \), divide both sides of the equation by 0.33:
\[ I = \frac{685.70}{0.33} \]
Calculating the right-hand side:
\[ I \approx 2075.76 \]
So, your realized income per month is approximately $2075.76.