Finding the Fourth Proportional to 1,250,399.72, 1,724,916.75 and 790,740.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,250,399.72 : 1,724,916.75 = 790,740.15 : x
2. Step 2: Convert to fraction form
   1,250,399.72/1,724,916.75 = 790,740.15/x
3. Step 3: Cross multiply
   1,250,399.72x = 1,724,916.75 × 790,740.15
4. Step 4: Simplify right side
   1,250,399.72x = 1,363,960,929,632.51
5. Step 5: Solve for x
   x = 1,363,960,929,632.51/1,250,399.72
6. Step 6: Final answer
   x = 1,090,819.93