Finding the Fourth Proportional to 2,271.57, 3,134.63 and 1,276.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,271.57 : 3,134.63 = 1,276.84 : x
2. Step 2: Convert to fraction form
   2,271.57/3,134.63 = 1,276.84/x
3. Step 3: Cross multiply
   2,271.57x = 3,134.63 × 1,276.84
4. Step 4: Simplify right side
   2,271.57x = 4,002,398.91
5. Step 5: Solve for x
   x = 4,002,398.91/2,271.57
6. Step 6: Final answer
   x = 1,761.95