Finding the Fourth Proportional to 3,639.16, 5,022.54 and 2,067.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,639.16 : 5,022.54 = 2,067.96 : x
2. Step 2: Convert to fraction form
   3,639.16/5,022.54 = 2,067.96/x
3. Step 3: Cross multiply
   3,639.16x = 5,022.54 × 2,067.96
4. Step 4: Simplify right side
   3,639.16x = 10,386,411.82
5. Step 5: Solve for x
   x = 10,386,411.82/3,639.16
6. Step 6: Final answer
   x = 2,854.07