Finding the Fourth Proportional to 3,150.72, 4,727.39 and 2,178.27

Step by Step Solution

1. Step 1: Write the proportion equation
   3,150.72 : 4,727.39 = 2,178.27 : x
2. Step 2: Convert to fraction form
   3,150.72/4,727.39 = 2,178.27/x
3. Step 3: Cross multiply
   3,150.72x = 4,727.39 × 2,178.27
4. Step 4: Simplify right side
   3,150.72x = 10,297,520.92
5. Step 5: Solve for x
   x = 10,297,520.92/3,150.72
6. Step 6: Final answer
   x = 3,268.31