Finding the Fourth Proportional to 2,274.10, 3,138.33 and 1,279.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,274.10 : 3,138.33 = 1,279.33 : x
2. Step 2: Convert to fraction form
   2,274.10/3,138.33 = 1,279.33/x
3. Step 3: Cross multiply
   2,274.10x = 3,138.33 × 1,279.33
4. Step 4: Simplify right side
   2,274.10x = 4,014,959.72
5. Step 5: Solve for x
   x = 4,014,959.72/2,274.10
6. Step 6: Final answer
   x = 1,765.52