Finding the Fourth Proportional to 3,391.56, 5,078.10 and 2,567.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,391.56 : 5,078.10 = 2,567.34 : x
2. Step 2: Convert to fraction form
   3,391.56/5,078.10 = 2,567.34/x
3. Step 3: Cross multiply
   3,391.56x = 5,078.10 × 2,567.34
4. Step 4: Simplify right side
   3,391.56x = 13,037,209.25
5. Step 5: Solve for x
   x = 13,037,209.25/3,391.56
6. Step 6: Final answer
   x = 3,844.02