Finding the Fourth Proportional to 2,255.20, 3,380.56 and 1,084.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,255.20 : 3,380.56 = 1,084.96 : x
2. Step 2: Convert to fraction form
   2,255.20/3,380.56 = 1,084.96/x
3. Step 3: Cross multiply
   2,255.20x = 3,380.56 × 1,084.96
4. Step 4: Simplify right side
   2,255.20x = 3,667,772.38
5. Step 5: Solve for x
   x = 3,667,772.38/2,255.20
6. Step 6: Final answer
   x = 1,626.36