Finding the Fourth Proportional to 689,366.72, 951,414.72 and 387,619.04

Step by Step Solution

1. Step 1: Write the proportion equation
   689,366.72 : 951,414.72 = 387,619.04 : x
2. Step 2: Convert to fraction form
   689,366.72/951,414.72 = 387,619.04/x
3. Step 3: Cross multiply
   689,366.72x = 951,414.72 × 387,619.04
4. Step 4: Simplify right side
   689,366.72x = 368,786,460,408.27
5. Step 5: Solve for x
   x = 368,786,460,408.27/689,366.72
6. Step 6: Final answer
   x = 534,964.12