Finding the Fourth Proportional to 2,269.26, 3,131.29 and 1,274.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,269.26 : 3,131.29 = 1,274.53 : x
2. Step 2: Convert to fraction form
   2,269.26/3,131.29 = 1,274.53/x
3. Step 3: Cross multiply
   2,269.26x = 3,131.29 × 1,274.53
4. Step 4: Simplify right side
   2,269.26x = 3,990,919.86
5. Step 5: Solve for x
   x = 3,990,919.86/2,269.26
6. Step 6: Final answer
   x = 1,758.69