Finding the Fourth Proportional to 2,657.49, 3,667.20 and 1,478.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,657.49 : 3,667.20 = 1,478.55 : x
2. Step 2: Convert to fraction form
   2,657.49/3,667.20 = 1,478.55/x
3. Step 3: Cross multiply
   2,657.49x = 3,667.20 × 1,478.55
4. Step 4: Simplify right side
   2,657.49x = 5,422,138.56
5. Step 5: Solve for x
   x = 5,422,138.56/2,657.49
6. Step 6: Final answer
   x = 2,040.32