Finding the Fourth Proportional to 1,083,632.50, 1,494,381.28 and 647,980.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,083,632.50 : 1,494,381.28 = 647,980.63 : x
2. Step 2: Convert to fraction form
   1,083,632.50/1,494,381.28 = 647,980.63/x
3. Step 3: Cross multiply
   1,083,632.50x = 1,494,381.28 × 647,980.63
4. Step 4: Simplify right side
   1,083,632.50x = 968,330,123,274.61
5. Step 5: Solve for x
   x = 968,330,123,274.61/1,083,632.50
6. Step 6: Final answer
   x = 893,596.42