Finding the Fourth Proportional to 2,271.16, 3,134.25 and 1,262.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,271.16 : 3,134.25 = 1,262.80 : x
2. Step 2: Convert to fraction form
   2,271.16/3,134.25 = 1,262.80/x
3. Step 3: Cross multiply
   2,271.16x = 3,134.25 × 1,262.80
4. Step 4: Simplify right side
   2,271.16x = 3,957,930.90
5. Step 5: Solve for x
   x = 3,957,930.90/2,271.16
6. Step 6: Final answer
   x = 1,742.69