Finding the Fourth Proportional to 3,974,922.38, 5,485,393.78 and 2,164,086.38

Step by Step Solution

1. Step 1: Write the proportion equation
   3,974,922.38 : 5,485,393.78 = 2,164,086.38 : x
2. Step 2: Convert to fraction form
   3,974,922.38/5,485,393.78 = 2,164,086.38/x
3. Step 3: Cross multiply
   3,974,922.38x = 5,485,393.78 × 2,164,086.38
4. Step 4: Simplify right side
   3,974,922.38x = 11,870,865,968,234.72
5. Step 5: Solve for x
   x = 11,870,865,968,234.72/3,974,922.38
6. Step 6: Final answer
   x = 2,986,439.69