Finding the Fourth Proportional to 3,056.94, 4,217.27 and 2,391.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,056.94 : 4,217.27 = 2,391.12 : x
2. Step 2: Convert to fraction form
   3,056.94/4,217.27 = 2,391.12/x
3. Step 3: Cross multiply
   3,056.94x = 4,217.27 × 2,391.12
4. Step 4: Simplify right side
   3,056.94x = 10,083,986.69
5. Step 5: Solve for x
   x = 10,083,986.69/3,056.94
6. Step 6: Final answer
   x = 3,298.72