Finding the Fourth Proportional to 2,261.27, 3,120.29 and 1,266.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,261.27 : 3,120.29 = 1,266.49 : x
2. Step 2: Convert to fraction form
   2,261.27/3,120.29 = 1,266.49/x
3. Step 3: Cross multiply
   2,261.27x = 3,120.29 × 1,266.49
4. Step 4: Simplify right side
   2,261.27x = 3,951,818.40
5. Step 5: Solve for x
   x = 3,951,818.40/2,261.27
6. Step 6: Final answer
   x = 1,747.61