Finding the Fourth Proportional to 1,110,799.78, 1,665,077.91 and 437,353.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,110,799.78 : 1,665,077.91 = 437,353.72 : x
2. Step 2: Convert to fraction form
   1,110,799.78/1,665,077.91 = 437,353.72/x
3. Step 3: Cross multiply
   1,110,799.78x = 1,665,077.91 × 437,353.72
4. Step 4: Simplify right side
   1,110,799.78x = 728,228,018,028.33
5. Step 5: Solve for x
   x = 728,228,018,028.33/1,110,799.78
6. Step 6: Final answer
   x = 655,588.91