Finding the Fourth Proportional to 1,399,495.55, 1,931,489.42 and 787,767.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,399,495.55 : 1,931,489.42 = 787,767.05 : x
2. Step 2: Convert to fraction form
   1,399,495.55/1,931,489.42 = 787,767.05/x
3. Step 3: Cross multiply
   1,399,495.55x = 1,931,489.42 × 787,767.05
4. Step 4: Simplify right side
   1,399,495.55x = 1,521,563,722,499.61
5. Step 5: Solve for x
   x = 1,521,563,722,499.61/1,399,495.55
6. Step 6: Final answer
   x = 1,087,222.98