Finding the Fourth Proportional to 3,640.43, 5,023.79 and 2,068.53

Step by Step Solution

1. Step 1: Write the proportion equation
   3,640.43 : 5,023.79 = 2,068.53 : x
2. Step 2: Convert to fraction form
   3,640.43/5,023.79 = 2,068.53/x
3. Step 3: Cross multiply
   3,640.43x = 5,023.79 × 2,068.53
4. Step 4: Simplify right side
   3,640.43x = 10,391,838.90
5. Step 5: Solve for x
   x = 10,391,838.90/3,640.43
6. Step 6: Final answer
   x = 2,854.56