Finding the Fourth Proportional to 3,640.06, 5,023.28 and 2,068.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,640.06 : 5,023.28 = 2,068.15 : x
2. Step 2: Convert to fraction form
   3,640.06/5,023.28 = 2,068.15/x
3. Step 3: Cross multiply
   3,640.06x = 5,023.28 × 2,068.15
4. Step 4: Simplify right side
   3,640.06x = 10,388,886.19
5. Step 5: Solve for x
   x = 10,388,886.19/3,640.06
6. Step 6: Final answer
   x = 2,854.05