Finding the Fourth Proportional to 3,639.42, 5,022.54 and 2,068.02

Step by Step Solution

1. Step 1: Write the proportion equation
   3,639.42 : 5,022.54 = 2,068.02 : x
2. Step 2: Convert to fraction form
   3,639.42/5,022.54 = 2,068.02/x
3. Step 3: Cross multiply
   3,639.42x = 5,022.54 × 2,068.02
4. Step 4: Simplify right side
   3,639.42x = 10,386,713.17
5. Step 5: Solve for x
   x = 10,386,713.17/3,639.42
6. Step 6: Final answer
   x = 2,853.95