Finding the Fourth Proportional to 1,123,249.72, 1,686,369.29 and 591,144.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123,249.72 : 1,686,369.29 = 591,144.42 : x
2. Step 2: Convert to fraction form
   1,123,249.72/1,686,369.29 = 591,144.42/x
3. Step 3: Cross multiply
   1,123,249.72x = 1,686,369.29 × 591,144.42
4. Step 4: Simplify right side
   1,123,249.72x = 996,887,797,793.30
5. Step 5: Solve for x
   x = 996,887,797,793.30/1,123,249.72
6. Step 6: Final answer
   x = 887,503.27