Finding the Fourth Proportional to 3,105,831.44, 4,658,745.72 and 861,968.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,105,831.44 : 4,658,745.72 = 861,968.72 : x
2. Step 2: Convert to fraction form
   3,105,831.44/4,658,745.72 = 861,968.72/x
3. Step 3: Cross multiply
   3,105,831.44x = 4,658,745.72 × 861,968.72
4. Step 4: Simplify right side
   3,105,831.44x = 4,015,693,085,073.88
5. Step 5: Solve for x
   x = 4,015,693,085,073.88/3,105,831.44
6. Step 6: Final answer
   x = 1,292,952.68