Finding the Fourth Proportional to 2,188,227.36, 3,280,095.72 and 840,026.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,188,227.36 : 3,280,095.72 = 840,026.91 : x
2. Step 2: Convert to fraction form
   2,188,227.36/3,280,095.72 = 840,026.91/x
3. Step 3: Cross multiply
   2,188,227.36x = 3,280,095.72 × 840,026.91
4. Step 4: Simplify right side
   2,188,227.36x = 2,755,368,672,175.83
5. Step 5: Solve for x
   x = 2,755,368,672,175.83/2,188,227.36
6. Step 6: Final answer
   x = 1,259,178.42