Finding the Fourth Proportional to 743,887.55, 1,026,565.50 and 404,355.80

Step by Step Solution

1. Step 1: Write the proportion equation
   743,887.55 : 1,026,565.50 = 404,355.80 : x
2. Step 2: Convert to fraction form
   743,887.55/1,026,565.50 = 404,355.80/x
3. Step 3: Cross multiply
   743,887.55x = 1,026,565.50 × 404,355.80
4. Step 4: Simplify right side
   743,887.55x = 415,097,710,038.72
5. Step 5: Solve for x
   x = 415,097,710,038.72/743,887.55
6. Step 6: Final answer
   x = 558,011.37