Finding the Fourth Proportional to 1,024,191.50, 1,536,361.05 and 393,105.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,024,191.50 : 1,536,361.05 = 393,105.30 : x
2. Step 2: Convert to fraction form
   1,024,191.50/1,536,361.05 = 393,105.30/x
3. Step 3: Cross multiply
   1,024,191.50x = 1,536,361.05 × 393,105.30
4. Step 4: Simplify right side
   1,024,191.50x = 603,951,671,468.57
5. Step 5: Solve for x
   x = 603,951,671,468.57/1,024,191.50
6. Step 6: Final answer
   x = 589,686.28