Finding the Fourth Proportional to 1,110,788.84, 1,665,061.20 and 437,342.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,110,788.84 : 1,665,061.20 = 437,342.69 : x
2. Step 2: Convert to fraction form
   1,110,788.84/1,665,061.20 = 437,342.69/x
3. Step 3: Cross multiply
   1,110,788.84x = 1,665,061.20 × 437,342.69
4. Step 4: Simplify right side
   1,110,788.84x = 728,202,335,897.32
5. Step 5: Solve for x
   x = 728,202,335,897.32/1,110,788.84
6. Step 6: Final answer
   x = 655,572.25