Finding the Fourth Proportional to 3,188.16, 4,760.42 and 2,856.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,188.16 : 4,760.42 = 2,856.96 : x
2. Step 2: Convert to fraction form
   3,188.16/4,760.42 = 2,856.96/x
3. Step 3: Cross multiply
   3,188.16x = 4,760.42 × 2,856.96
4. Step 4: Simplify right side
   3,188.16x = 13,600,329.52
5. Step 5: Solve for x
   x = 13,600,329.52/3,188.16
6. Step 6: Final answer
   x = 4,265.89