Finding the Fourth Proportional to 2,104.38, 2,902.37 and 1,440.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,104.38 : 2,902.37 = 1,440.18 : x
2. Step 2: Convert to fraction form
   2,104.38/2,902.37 = 1,440.18/x
3. Step 3: Cross multiply
   2,104.38x = 2,902.37 × 1,440.18
4. Step 4: Simplify right side
   2,104.38x = 4,179,928.03
5. Step 5: Solve for x
   x = 4,179,928.03/2,104.38
6. Step 6: Final answer
   x = 1,986.30