Finding the Fourth Proportional to 2,514.77, 3,773.18 and 872.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,514.77 : 3,773.18 = 872.47 : x
2. Step 2: Convert to fraction form
   2,514.77/3,773.18 = 872.47/x
3. Step 3: Cross multiply
   2,514.77x = 3,773.18 × 872.47
4. Step 4: Simplify right side
   2,514.77x = 3,291,986.35
5. Step 5: Solve for x
   x = 3,291,986.35/2,514.77
6. Step 6: Final answer
   x = 1,309.06