Finding the Fourth Proportional to 1,243,643.35, 1,862,475.59 and 709,545.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,243,643.35 : 1,862,475.59 = 709,545.15 : x
2. Step 2: Convert to fraction form
   1,243,643.35/1,862,475.59 = 709,545.15/x
3. Step 3: Cross multiply
   1,243,643.35x = 1,862,475.59 × 709,545.15
4. Step 4: Simplify right side
   1,243,643.35x = 1,321,510,521,877.89
5. Step 5: Solve for x
   x = 1,321,510,521,877.89/1,243,643.35
6. Step 6: Final answer
   x = 1,062,612.14