Finding the Fourth Proportional to 2,619.34, 3,614.88 and 1,440.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,619.34 : 3,614.88 = 1,440.46 : x
2. Step 2: Convert to fraction form
   2,619.34/3,614.88 = 1,440.46/x
3. Step 3: Cross multiply
   2,619.34x = 3,614.88 × 1,440.46
4. Step 4: Simplify right side
   2,619.34x = 5,207,090.04
5. Step 5: Solve for x
   x = 5,207,090.04/2,619.34
6. Step 6: Final answer
   x = 1,987.94