Finding the Fourth Proportional to 2,268.98, 3,131.28 and 1,274.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,268.98 : 3,131.28 = 1,274.24 : x
2. Step 2: Convert to fraction form
   2,268.98/3,131.28 = 1,274.24/x
3. Step 3: Cross multiply
   2,268.98x = 3,131.28 × 1,274.24
4. Step 4: Simplify right side
   2,268.98x = 3,989,986.57
5. Step 5: Solve for x
   x = 3,989,986.57/2,268.98
6. Step 6: Final answer
   x = 1,758.50