Finding the Fourth Proportional to 2,271.49, 3,134.60 and 1,276.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,271.49 : 3,134.60 = 1,276.75 : x
2. Step 2: Convert to fraction form
   2,271.49/3,134.60 = 1,276.75/x
3. Step 3: Cross multiply
   2,271.49x = 3,134.60 × 1,276.75
4. Step 4: Simplify right side
   2,271.49x = 4,002,100.55
5. Step 5: Solve for x
   x = 4,002,100.55/2,271.49
6. Step 6: Final answer
   x = 1,761.88