Finding the Fourth Proportional to 2,274.94, 3,139.39 and 1,266.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,274.94 : 3,139.39 = 1,266.62 : x
2. Step 2: Convert to fraction form
   2,274.94/3,139.39 = 1,266.62/x
3. Step 3: Cross multiply
   2,274.94x = 3,139.39 × 1,266.62
4. Step 4: Simplify right side
   2,274.94x = 3,976,401.75
5. Step 5: Solve for x
   x = 3,976,401.75/2,274.94
6. Step 6: Final answer
   x = 1,747.92