Finding the Fourth Proportional to 1,043,018.56, 1,565,185.97 and 443,978.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,043,018.56 : 1,565,185.97 = 443,978.74 : x
2. Step 2: Convert to fraction form
   1,043,018.56/1,565,185.97 = 443,978.74/x
3. Step 3: Cross multiply
   1,043,018.56x = 1,565,185.97 × 443,978.74
4. Step 4: Simplify right side
   1,043,018.56x = 694,909,294,826.28
5. Step 5: Solve for x
   x = 694,909,294,826.28/1,043,018.56
6. Step 6: Final answer
   x = 666,248.25