Finding the Fourth Proportional to 2,432,916.18, 3,648,990.90 and 813,672.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,432,916.18 : 3,648,990.90 = 813,672.72 : x
2. Step 2: Convert to fraction form
   2,432,916.18/3,648,990.90 = 813,672.72/x
3. Step 3: Cross multiply
   2,432,916.18x = 3,648,990.90 × 813,672.72
4. Step 4: Simplify right side
   2,432,916.18x = 2,969,084,350,858.25
5. Step 5: Solve for x
   x = 2,969,084,350,858.25/2,432,916.18
6. Step 6: Final answer
   x = 1,220,380.86