Finding the Fourth Proportional to 1,018,978.38, 1,406,214.27 and 560,089.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018,978.38 : 1,406,214.27 = 560,089.49 : x
2. Step 2: Convert to fraction form
   1,018,978.38/1,406,214.27 = 560,089.49/x
3. Step 3: Cross multiply
   1,018,978.38x = 1,406,214.27 × 560,089.49
4. Step 4: Simplify right side
   1,018,978.38x = 787,605,826,283.95
5. Step 5: Solve for x
   x = 787,605,826,283.95/1,018,978.38
6. Step 6: Final answer
   x = 772,936.74