Finding the Fourth Proportional to 1,218,470.24, 1,681,488.72 and 681,926.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,218,470.24 : 1,681,488.72 = 681,926.24 : x
2. Step 2: Convert to fraction form
   1,218,470.24/1,681,488.72 = 681,926.24/x
3. Step 3: Cross multiply
   1,218,470.24x = 1,681,488.72 × 681,926.24
4. Step 4: Simplify right side
   1,218,470.24x = 1,146,651,280,432.01
5. Step 5: Solve for x
   x = 1,146,651,280,432.01/1,218,470.24
6. Step 6: Final answer
   x = 941,058.09