Finding the Fourth Proportional to 2,269.22, 3,131.47 and 1,274.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,269.22 : 3,131.47 = 1,274.54 : x
2. Step 2: Convert to fraction form
   2,269.22/3,131.47 = 1,274.54/x
3. Step 3: Cross multiply
   2,269.22x = 3,131.47 × 1,274.54
4. Step 4: Simplify right side
   2,269.22x = 3,991,183.77
5. Step 5: Solve for x
   x = 3,991,183.77/2,269.22
6. Step 6: Final answer
   x = 1,758.84