Finding the Fourth Proportional to 1,156,682.42, 1,596,221.55 and 647,384.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,156,682.42 : 1,596,221.55 = 647,384.78 : x
2. Step 2: Convert to fraction form
   1,156,682.42/1,596,221.55 = 647,384.78/x
3. Step 3: Cross multiply
   1,156,682.42x = 1,596,221.55 × 647,384.78
4. Step 4: Simplify right side
   1,156,682.42x = 1,033,369,536,978.01
5. Step 5: Solve for x
   x = 1,033,369,536,978.01/1,156,682.42
6. Step 6: Final answer
   x = 893,390.89