Finding the Fourth Proportional to 2,269.25, 3,131.65 and 1,274.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,269.25 : 3,131.65 = 1,274.49 : x
2. Step 2: Convert to fraction form
   2,269.25/3,131.65 = 1,274.49/x
3. Step 3: Cross multiply
   2,269.25x = 3,131.65 × 1,274.49
4. Step 4: Simplify right side
   2,269.25x = 3,991,256.61
5. Step 5: Solve for x
   x = 3,991,256.61/2,269.25
6. Step 6: Final answer
   x = 1,758.84