Finding the Fourth Proportional to 3,640.10, 5,023.35 and 2,068.16

Step by Step Solution

1. Step 1: Write the proportion equation
   3,640.10 : 5,023.35 = 2,068.16 : x
2. Step 2: Convert to fraction form
   3,640.10/5,023.35 = 2,068.16/x
3. Step 3: Cross multiply
   3,640.10x = 5,023.35 × 2,068.16
4. Step 4: Simplify right side
   3,640.10x = 10,389,066.42
5. Step 5: Solve for x
   x = 10,389,066.42/3,640.10
6. Step 6: Final answer
   x = 2,854.06