Finding the Fourth Proportional to 2,227.15, 3,071.82 and 1,440.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,227.15 : 3,071.82 = 1,440.37 : x
2. Step 2: Convert to fraction form
   2,227.15/3,071.82 = 1,440.37/x
3. Step 3: Cross multiply
   2,227.15x = 3,071.82 × 1,440.37
4. Step 4: Simplify right side
   2,227.15x = 4,424,557.37
5. Step 5: Solve for x
   x = 4,424,557.37/2,227.15
6. Step 6: Final answer
   x = 1,986.65