Finding the Fourth Proportional to 2,672.89, 4,010.85 and 1,440.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,672.89 : 4,010.85 = 1,440.27 : x
2. Step 2: Convert to fraction form
   2,672.89/4,010.85 = 1,440.27/x
3. Step 3: Cross multiply
   2,672.89x = 4,010.85 × 1,440.27
4. Step 4: Simplify right side
   2,672.89x = 5,776,706.93
5. Step 5: Solve for x
   x = 5,776,706.93/2,672.89
6. Step 6: Final answer
   x = 2,161.22