Finding the Fourth Proportional to 691,050.96, 953,682.72 and 404,663.28

Step by Step Solution

1. Step 1: Write the proportion equation
   691,050.96 : 953,682.72 = 404,663.28 : x
2. Step 2: Convert to fraction form
   691,050.96/953,682.72 = 404,663.28/x
3. Step 3: Cross multiply
   691,050.96x = 953,682.72 × 404,663.28
4. Step 4: Simplify right side
   691,050.96x = 385,920,377,554.52
5. Step 5: Solve for x
   x = 385,920,377,554.52/691,050.96
6. Step 6: Final answer
   x = 558,454.30