Finding the Fourth Proportional to 1,141,152.55, 1,711,727.20 and 342,432.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,141,152.55 : 1,711,727.20 = 342,432.79 : x
2. Step 2: Convert to fraction form
   1,141,152.55/1,711,727.20 = 342,432.79/x
3. Step 3: Cross multiply
   1,141,152.55x = 1,711,727.20 × 342,432.79
4. Step 4: Simplify right side
   1,141,152.55x = 586,151,520,814.89
5. Step 5: Solve for x
   x = 586,151,520,814.89/1,141,152.55
6. Step 6: Final answer
   x = 513,648.70