Finding the Fourth Proportional to 2,257.52, 3,121.08 and 1,667.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,257.52 : 3,121.08 = 1,667.12 : x
2. Step 2: Convert to fraction form
   2,257.52/3,121.08 = 1,667.12/x
3. Step 3: Cross multiply
   2,257.52x = 3,121.08 × 1,667.12
4. Step 4: Simplify right side
   2,257.52x = 5,203,214.89
5. Step 5: Solve for x
   x = 5,203,214.89/2,257.52
6. Step 6: Final answer
   x = 2,304.84