Finding the Fourth Proportional to 1,061,373.18, 1,592,056.17 and 430,285.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061,373.18 : 1,592,056.17 = 430,285.50 : x
2. Step 2: Convert to fraction form
   1,061,373.18/1,592,056.17 = 430,285.50/x
3. Step 3: Cross multiply
   1,061,373.18x = 1,592,056.17 × 430,285.50
4. Step 4: Simplify right side
   1,061,373.18x = 685,038,685,136.54
5. Step 5: Solve for x
   x = 685,038,685,136.54/1,061,373.18
6. Step 6: Final answer
   x = 645,426.79