Finding the Fourth Proportional to 1,433,710.80, 1,978,505.24 and 789,117.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433,710.80 : 1,978,505.24 = 789,117.12 : x
2. Step 2: Convert to fraction form
   1,433,710.80/1,978,505.24 = 789,117.12/x
3. Step 3: Cross multiply
   1,433,710.80x = 1,978,505.24 × 789,117.12
4. Step 4: Simplify right side
   1,433,710.80x = 1,561,272,356,893.71
5. Step 5: Solve for x
   x = 1,561,272,356,893.71/1,433,710.80
6. Step 6: Final answer
   x = 1,088,973.00