Finding the Fourth Proportional to 3,639.56, 5,022.42 and 2,067.62

Step by Step Solution

1. Step 1: Write the proportion equation
   3,639.56 : 5,022.42 = 2,067.62 : x
2. Step 2: Convert to fraction form
   3,639.56/5,022.42 = 2,067.62/x
3. Step 3: Cross multiply
   3,639.56x = 5,022.42 × 2,067.62
4. Step 4: Simplify right side
   3,639.56x = 10,384,456.04
5. Step 5: Solve for x
   x = 10,384,456.04/3,639.56
6. Step 6: Final answer
   x = 2,853.22