Finding the Fourth Proportional to 2,546.28, 3,514.56 and 2,391.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,546.28 : 3,514.56 = 2,391.40 : x
2. Step 2: Convert to fraction form
   2,546.28/3,514.56 = 2,391.40/x
3. Step 3: Cross multiply
   2,546.28x = 3,514.56 × 2,391.40
4. Step 4: Simplify right side
   2,546.28x = 8,404,718.78
5. Step 5: Solve for x
   x = 8,404,718.78/2,546.28
6. Step 6: Final answer
   x = 3,300.78