Finding the Fourth Proportional to 3,686.79, 5,087.69 and 2,008.17

Step by Step Solution

1. Step 1: Write the proportion equation
   3,686.79 : 5,087.69 = 2,008.17 : x
2. Step 2: Convert to fraction form
   3,686.79/5,087.69 = 2,008.17/x
3. Step 3: Cross multiply
   3,686.79x = 5,087.69 × 2,008.17
4. Step 4: Simplify right side
   3,686.79x = 10,216,974.29
5. Step 5: Solve for x
   x = 10,216,974.29/3,686.79
6. Step 6: Final answer
   x = 2,771.24