Finding the Fourth Proportional to 862,498.95, 1,189,441.25 and 681,642.95

Step by Step Solution

1. Step 1: Write the proportion equation
   862,498.95 : 1,189,441.25 = 681,642.95 : x
2. Step 2: Convert to fraction form
   862,498.95/1,189,441.25 = 681,642.95/x
3. Step 3: Cross multiply
   862,498.95x = 1,189,441.25 × 681,642.95
4. Step 4: Simplify right side
   862,498.95x = 810,774,233,146.27
5. Step 5: Solve for x
   x = 810,774,233,146.27/862,498.95
6. Step 6: Final answer
   x = 940,029.24