Finding the Fourth Proportional to 2,619.37, 3,614.73 and 1,440.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,619.37 : 3,614.73 = 1,440.43 : x
2. Step 2: Convert to fraction form
   2,619.37/3,614.73 = 1,440.43/x
3. Step 3: Cross multiply
   2,619.37x = 3,614.73 × 1,440.43
4. Step 4: Simplify right side
   2,619.37x = 5,206,765.53
5. Step 5: Solve for x
   x = 5,206,765.53/2,619.37
6. Step 6: Final answer
   x = 1,987.79