Finding the Fourth Proportional to 1,043,540.72, 1,565,507.85 and 395,310.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,043,540.72 : 1,565,507.85 = 395,310.96 : x
2. Step 2: Convert to fraction form
   1,043,540.72/1,565,507.85 = 395,310.96/x
3. Step 3: Cross multiply
   1,043,540.72x = 1,565,507.85 × 395,310.96
4. Step 4: Simplify right side
   1,043,540.72x = 618,862,407,131.27
5. Step 5: Solve for x
   x = 618,862,407,131.27/1,043,540.72
6. Step 6: Final answer
   x = 593,040.98