Finding the Fourth Proportional to 3,686.38, 5,087.72 and 2,114.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,686.38 : 5,087.72 = 2,114.48 : x
2. Step 2: Convert to fraction form
   3,686.38/5,087.72 = 2,114.48/x
3. Step 3: Cross multiply
   3,686.38x = 5,087.72 × 2,114.48
4. Step 4: Simplify right side
   3,686.38x = 10,757,900.19
5. Step 5: Solve for x
   x = 10,757,900.19/3,686.38
6. Step 6: Final answer
   x = 2,918.29