Finding the Fourth Proportional to 2,269.05, 3,131.11 and 1,274.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,269.05 : 3,131.11 = 1,274.29 : x
2. Step 2: Convert to fraction form
   2,269.05/3,131.11 = 1,274.29/x
3. Step 3: Cross multiply
   2,269.05x = 3,131.11 × 1,274.29
4. Step 4: Simplify right side
   2,269.05x = 3,989,937.57
5. Step 5: Solve for x
   x = 3,989,937.57/2,269.05
6. Step 6: Final answer
   x = 1,758.42