Finding the Fourth Proportional to 2,426.27, 3,640.49 and 1,271.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,426.27 : 3,640.49 = 1,271.75 : x
2. Step 2: Convert to fraction form
   2,426.27/3,640.49 = 1,271.75/x
3. Step 3: Cross multiply
   2,426.27x = 3,640.49 × 1,271.75
4. Step 4: Simplify right side
   2,426.27x = 4,629,793.16
5. Step 5: Solve for x
   x = 4,629,793.16/2,426.27
6. Step 6: Final answer
   x = 1,908.19