Finding the Fourth Proportional to 2,383.18, 3,288.00 and 1,438.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,383.18 : 3,288.00 = 1,438.61 : x
2. Step 2: Convert to fraction form
   2,383.18/3,288.00 = 1,438.61/x
3. Step 3: Cross multiply
   2,383.18x = 3,288.00 × 1,438.61
4. Step 4: Simplify right side
   2,383.18x = 4,730,134.27
5. Step 5: Solve for x
   x = 4,730,134.27/2,383.18
6. Step 6: Final answer
   x = 1,984.80