Finding the Fourth Proportional to 2,443.20, 3,300.75 and 2,443.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.20 : 3,300.75 = 2,443.20 : x
2. Step 2: Convert to fraction form
   2,443.20/3,300.75 = 2,443.20/x
3. Step 3: Cross multiply
   2,443.20x = 3,300.75 × 2,443.20
4. Step 4: Simplify right side
   2,443.20x = 8,064,392.40
5. Step 5: Solve for x
   x = 8,064,392.40/2,443.20
6. Step 6: Final answer
   x = 3,300.75