Finding the Fourth Proportional to 2,620,831.41, 3,932,391.78 and 916,198.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,620,831.41 : 3,932,391.78 = 916,198.56 : x
2. Step 2: Convert to fraction form
   2,620,831.41/3,932,391.78 = 916,198.56/x
3. Step 3: Cross multiply
   2,620,831.41x = 3,932,391.78 × 916,198.56
4. Step 4: Simplify right side
   2,620,831.41x = 3,602,851,686,191.84
5. Step 5: Solve for x
   x = 3,602,851,686,191.84/2,620,831.41
6. Step 6: Final answer
   x = 1,374,698.00