Finding the Fourth Proportional to 689,150.50, 951,086.01 and 387,402.82

Step by Step Solution

1. Step 1: Write the proportion equation
   689,150.50 : 951,086.01 = 387,402.82 : x
2. Step 2: Convert to fraction form
   689,150.50/951,086.01 = 387,402.82/x
3. Step 3: Cross multiply
   689,150.50x = 951,086.01 × 387,402.82
4. Step 4: Simplify right side
   689,150.50x = 368,453,402,336.55
5. Step 5: Solve for x
   x = 368,453,402,336.55/689,150.50
6. Step 6: Final answer
   x = 534,648.68