Finding the Fourth Proportional to 1,152,672.72, 1,728,855.92 and 343,042.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152,672.72 : 1,728,855.92 = 343,042.60 : x
2. Step 2: Convert to fraction form
   1,152,672.72/1,728,855.92 = 343,042.60/x
3. Step 3: Cross multiply
   1,152,672.72x = 1,728,855.92 × 343,042.60
4. Step 4: Simplify right side
   1,152,672.72x = 593,071,229,822.19
5. Step 5: Solve for x
   x = 593,071,229,822.19/1,152,672.72
6. Step 6: Final answer
   x = 514,518.32