Finding the Fourth Proportional to 2,365.68, 3,264.72 and 1,581.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,365.68 : 3,264.72 = 1,581.28 : x
2. Step 2: Convert to fraction form
   2,365.68/3,264.72 = 1,581.28/x
3. Step 3: Cross multiply
   2,365.68x = 3,264.72 × 1,581.28
4. Step 4: Simplify right side
   2,365.68x = 5,162,436.44
5. Step 5: Solve for x
   x = 5,162,436.44/2,365.68
6. Step 6: Final answer
   x = 2,182.22