Finding the Fourth Proportional to 3,686.86, 5,087.82 and 2,114.92

Step by Step Solution

1. Step 1: Write the proportion equation
   3,686.86 : 5,087.82 = 2,114.92 : x
2. Step 2: Convert to fraction form
   3,686.86/5,087.82 = 2,114.92/x
3. Step 3: Cross multiply
   3,686.86x = 5,087.82 × 2,114.92
4. Step 4: Simplify right side
   3,686.86x = 10,760,332.27
5. Step 5: Solve for x
   x = 10,760,332.27/3,686.86
6. Step 6: Final answer
   x = 2,918.56