Finding the Fourth Proportional to 3,640.50, 5,023.71 and 2,068.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,640.50 : 5,023.71 = 2,068.50 : x
2. Step 2: Convert to fraction form
   3,640.50/5,023.71 = 2,068.50/x
3. Step 3: Cross multiply
   3,640.50x = 5,023.71 × 2,068.50
4. Step 4: Simplify right side
   3,640.50x = 10,391,544.14
5. Step 5: Solve for x
   x = 10,391,544.14/3,640.50
6. Step 6: Final answer
   x = 2,854.43