Finding the Fourth Proportional to 2,514.72, 3,772.34 and 871.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,514.72 : 3,772.34 = 871.26 : x
2. Step 2: Convert to fraction form
   2,514.72/3,772.34 = 871.26/x
3. Step 3: Cross multiply
   2,514.72x = 3,772.34 × 871.26
4. Step 4: Simplify right side
   2,514.72x = 3,286,684.59
5. Step 5: Solve for x
   x = 3,286,684.59/2,514.72
6. Step 6: Final answer
   x = 1,306.98