Finding the Fourth Proportional to 2,268.95, 3,131.39 and 1,274.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,268.95 : 3,131.39 = 1,274.17 : x
2. Step 2: Convert to fraction form
   2,268.95/3,131.39 = 1,274.17/x
3. Step 3: Cross multiply
   2,268.95x = 3,131.39 × 1,274.17
4. Step 4: Simplify right side
   2,268.95x = 3,989,923.20
5. Step 5: Solve for x
   x = 3,989,923.20/2,268.95
6. Step 6: Final answer
   x = 1,758.49