Finding the Fourth Proportional to 911,406.56, 1,365,920.72 and 659,535.44

Step by Step Solution

1. Step 1: Write the proportion equation
   911,406.56 : 1,365,920.72 = 659,535.44 : x
2. Step 2: Convert to fraction form
   911,406.56/1,365,920.72 = 659,535.44/x
3. Step 3: Cross multiply
   911,406.56x = 1,365,920.72 × 659,535.44
4. Step 4: Simplify right side
   911,406.56x = 900,873,123,070.32
5. Step 5: Solve for x
   x = 900,873,123,070.32/911,406.56
6. Step 6: Final answer
   x = 988,442.66