Finding the Fourth Proportional to 2,208,832.30, 3,314,998.05 and 861,640.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,208,832.30 : 3,314,998.05 = 861,640.30 : x
2. Step 2: Convert to fraction form
   2,208,832.30/3,314,998.05 = 861,640.30/x
3. Step 3: Cross multiply
   2,208,832.30x = 3,314,998.05 × 861,640.30
4. Step 4: Simplify right side
   2,208,832.30x = 2,856,335,914,301.42
5. Step 5: Solve for x
   x = 2,856,335,914,301.42/2,208,832.30
6. Step 6: Final answer
   x = 1,293,142.95