Finding the Fourth Proportional to 2,857.02, 3,930.12 and 2,695.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,857.02 : 3,930.12 = 2,695.74 : x
2. Step 2: Convert to fraction form
   2,857.02/3,930.12 = 2,695.74/x
3. Step 3: Cross multiply
   2,857.02x = 3,930.12 × 2,695.74
4. Step 4: Simplify right side
   2,857.02x = 10,594,581.69
5. Step 5: Solve for x
   x = 10,594,581.69/2,857.02
6. Step 6: Final answer
   x = 3,708.26