Finding the Fourth Proportional to 2,619.46, 3,614.84 and 1,440.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,619.46 : 3,614.84 = 1,440.52 : x
2. Step 2: Convert to fraction form
   2,619.46/3,614.84 = 1,440.52/x
3. Step 3: Cross multiply
   2,619.46x = 3,614.84 × 1,440.52
4. Step 4: Simplify right side
   2,619.46x = 5,207,249.32
5. Step 5: Solve for x
   x = 5,207,249.32/2,619.46
6. Step 6: Final answer
   x = 1,987.91