Finding the Fourth Proportional to 2,323.76, 3,208.29 and 1,440.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,323.76 : 3,208.29 = 1,440.50 : x
2. Step 2: Convert to fraction form
   2,323.76/3,208.29 = 1,440.50/x
3. Step 3: Cross multiply
   2,323.76x = 3,208.29 × 1,440.50
4. Step 4: Simplify right side
   2,323.76x = 4,621,541.75
5. Step 5: Solve for x
   x = 4,621,541.75/2,323.76
6. Step 6: Final answer
   x = 1,988.82