Finding the Fourth Proportional to 2,269.25, 3,131.51 and 1,274.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,269.25 : 3,131.51 = 1,274.57 : x
2. Step 2: Convert to fraction form
   2,269.25/3,131.51 = 1,274.57/x
3. Step 3: Cross multiply
   2,269.25x = 3,131.51 × 1,274.57
4. Step 4: Simplify right side
   2,269.25x = 3,991,325.58
5. Step 5: Solve for x
   x = 3,991,325.58/2,269.25
6. Step 6: Final answer
   x = 1,758.88