Finding the Fourth Proportional to 2,565.52, 3,841.12 and 1,330.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,565.52 : 3,841.12 = 1,330.28 : x
2. Step 2: Convert to fraction form
   2,565.52/3,841.12 = 1,330.28/x
3. Step 3: Cross multiply
   2,565.52x = 3,841.12 × 1,330.28
4. Step 4: Simplify right side
   2,565.52x = 5,109,765.11
5. Step 5: Solve for x
   x = 5,109,765.11/2,565.52
6. Step 6: Final answer
   x = 1,991.71