Finding the Fourth Proportional to 783,196.64, 1,080,985.20 and 443,852

Step by Step Solution

1. Step 1: Write the proportion equation
   783,196.64 : 1,080,985.20 = 443,852 : x
2. Step 2: Convert to fraction form
   783,196.64/1,080,985.20 = 443,852/x
3. Step 3: Cross multiply
   783,196.64x = 1,080,985.20 × 443,852
4. Step 4: Simplify right side
   783,196.64x = 479,797,442,990.40
5. Step 5: Solve for x
   x = 479,797,442,990.40/783,196.64
6. Step 6: Final answer
   x = 612,614.28