Finding the Fourth Proportional to 2,271.45, 3,134.56 and 1,276.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,271.45 : 3,134.56 = 1,276.71 : x
2. Step 2: Convert to fraction form
   2,271.45/3,134.56 = 1,276.71/x
3. Step 3: Cross multiply
   2,271.45x = 3,134.56 × 1,276.71
4. Step 4: Simplify right side
   2,271.45x = 4,001,924.10
5. Step 5: Solve for x
   x = 4,001,924.10/2,271.45
6. Step 6: Final answer
   x = 1,761.84