Finding the Fourth Proportional to 843,100.32, 1,264,395.24 and 443,520.72

Step by Step Solution

1. Step 1: Write the proportion equation
   843,100.32 : 1,264,395.24 = 443,520.72 : x
2. Step 2: Convert to fraction form
   843,100.32/1,264,395.24 = 443,520.72/x
3. Step 3: Cross multiply
   843,100.32x = 1,264,395.24 × 443,520.72
4. Step 4: Simplify right side
   843,100.32x = 560,785,487,209.37
5. Step 5: Solve for x
   x = 560,785,487,209.37/843,100.32
6. Step 6: Final answer
   x = 665,146.81