Finding the Fourth Proportional to 1,296,482.43, 1,789,098.86 and 715,693.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,296,482.43 : 1,789,098.86 = 715,693.10 : x
2. Step 2: Convert to fraction form
   1,296,482.43/1,789,098.86 = 715,693.10/x
3. Step 3: Cross multiply
   1,296,482.43x = 1,789,098.86 × 715,693.10
4. Step 4: Simplify right side
   1,296,482.43x = 1,280,445,707,069.85
5. Step 5: Solve for x
   x = 1,280,445,707,069.85/1,296,482.43
6. Step 6: Final answer
   x = 987,630.59