Finding the Fourth Proportional to 914,493.80, 1,259,122.23 and 776,399.59

Step by Step Solution

1. Step 1: Write the proportion equation
   914,493.80 : 1,259,122.23 = 776,399.59 : x
2. Step 2: Convert to fraction form
   914,493.80/1,259,122.23 = 776,399.59/x
3. Step 3: Cross multiply
   914,493.80x = 1,259,122.23 × 776,399.59
4. Step 4: Simplify right side
   914,493.80x = 977,581,978,705.56
5. Step 5: Solve for x
   x = 977,581,978,705.56/914,493.80
6. Step 6: Final answer
   x = 1,068,986.99