Finding the Fourth Proportional to 1,083,630.50, 1,494,378.52 and 647,978.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,083,630.50 : 1,494,378.52 = 647,978.63 : x
2. Step 2: Convert to fraction form
   1,083,630.50/1,494,378.52 = 647,978.63/x
3. Step 3: Cross multiply
   1,083,630.50x = 1,494,378.52 × 647,978.63
4. Step 4: Simplify right side
   1,083,630.50x = 968,325,347,272.78
5. Step 5: Solve for x
   x = 968,325,347,272.78/1,083,630.50
6. Step 6: Final answer
   x = 893,593.66