Finding the Fourth Proportional to 3,639.12, 5,022.42 and 2,067.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,639.12 : 5,022.42 = 2,067.52 : x
2. Step 2: Convert to fraction form
   3,639.12/5,022.42 = 2,067.52/x
3. Step 3: Cross multiply
   3,639.12x = 5,022.42 × 2,067.52
4. Step 4: Simplify right side
   3,639.12x = 10,383,953.80
5. Step 5: Solve for x
   x = 10,383,953.80/3,639.12
6. Step 6: Final answer
   x = 2,853.42