Finding the Fourth Proportional to 2,627.46, 3,940.89 and 872.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,627.46 : 3,940.89 = 872.04 : x
2. Step 2: Convert to fraction form
   2,627.46/3,940.89 = 872.04/x
3. Step 3: Cross multiply
   2,627.46x = 3,940.89 × 872.04
4. Step 4: Simplify right side
   2,627.46x = 3,436,613.72
5. Step 5: Solve for x
   x = 3,436,613.72/2,627.46
6. Step 6: Final answer
   x = 1,307.96