Finding the Fourth Proportional to 2,514.48, 3,772.86 and 872.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,514.48 : 3,772.86 = 872.22 : x
2. Step 2: Convert to fraction form
   2,514.48/3,772.86 = 872.22/x
3. Step 3: Cross multiply
   2,514.48x = 3,772.86 × 872.22
4. Step 4: Simplify right side
   2,514.48x = 3,290,763.95
5. Step 5: Solve for x
   x = 3,290,763.95/2,514.48
6. Step 6: Final answer
   x = 1,308.73