Finding the Fourth Proportional to 2,268.98, 3,131.14 and 1,274.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,268.98 : 3,131.14 = 1,274.30 : x
2. Step 2: Convert to fraction form
   2,268.98/3,131.14 = 1,274.30/x
3. Step 3: Cross multiply
   2,268.98x = 3,131.14 × 1,274.30
4. Step 4: Simplify right side
   2,268.98x = 3,990,011.70
5. Step 5: Solve for x
   x = 3,990,011.70/2,268.98
6. Step 6: Final answer
   x = 1,758.50