Finding the Fourth Proportional to 3,686.39, 5,087.17 and 2,114.45

Step by Step Solution

1. Step 1: Write the proportion equation
   3,686.39 : 5,087.17 = 2,114.45 : x
2. Step 2: Convert to fraction form
   3,686.39/5,087.17 = 2,114.45/x
3. Step 3: Cross multiply
   3,686.39x = 5,087.17 × 2,114.45
4. Step 4: Simplify right side
   3,686.39x = 10,756,551.00
5. Step 5: Solve for x
   x = 10,756,551.00/3,686.39
6. Step 6: Final answer
   x = 2,917.91