Finding the Fourth Proportional to 689,815.52, 951,925.86 and 383,887

Step by Step Solution

1. Step 1: Write the proportion equation
   689,815.52 : 951,925.86 = 383,887 : x
2. Step 2: Convert to fraction form
   689,815.52/951,925.86 = 383,887/x
3. Step 3: Cross multiply
   689,815.52x = 951,925.86 × 383,887
4. Step 4: Simplify right side
   689,815.52x = 365,431,962,617.82
5. Step 5: Solve for x
   x = 365,431,962,617.82/689,815.52
6. Step 6: Final answer
   x = 529,753.18