Finding the Fourth Proportional to 2,269.32, 3,131.42 and 1,274.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,269.32 : 3,131.42 = 1,274.70 : x
2. Step 2: Convert to fraction form
   2,269.32/3,131.42 = 1,274.70/x
3. Step 3: Cross multiply
   2,269.32x = 3,131.42 × 1,274.70
4. Step 4: Simplify right side
   2,269.32x = 3,991,626.44
5. Step 5: Solve for x
   x = 3,991,626.44/2,269.32
6. Step 6: Final answer
   x = 1,758.96