Finding the Fourth Proportional to 2,619.32, 3,614.67 and 1,440.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,619.32 : 3,614.67 = 1,440.46 : x
2. Step 2: Convert to fraction form
   2,619.32/3,614.67 = 1,440.46/x
3. Step 3: Cross multiply
   2,619.32x = 3,614.67 × 1,440.46
4. Step 4: Simplify right side
   2,619.32x = 5,206,796.58
5. Step 5: Solve for x
   x = 5,206,796.58/2,619.32
6. Step 6: Final answer
   x = 1,987.84