Finding the Fourth Proportional to 2,383.27, 3,575.92 and 1,288.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,383.27 : 3,575.92 = 1,288.40 : x
2. Step 2: Convert to fraction form
   2,383.27/3,575.92 = 1,288.40/x
3. Step 3: Cross multiply
   2,383.27x = 3,575.92 × 1,288.40
4. Step 4: Simplify right side
   2,383.27x = 4,607,215.33
5. Step 5: Solve for x
   x = 4,607,215.33/2,383.27
6. Step 6: Final answer
   x = 1,933.15