Finding the Fourth Proportional to 3,443.24, 5,162.56 and 1,778.38

Step by Step Solution

1. Step 1: Write the proportion equation
   3,443.24 : 5,162.56 = 1,778.38 : x
2. Step 2: Convert to fraction form
   3,443.24/5,162.56 = 1,778.38/x
3. Step 3: Cross multiply
   3,443.24x = 5,162.56 × 1,778.38
4. Step 4: Simplify right side
   3,443.24x = 9,180,993.45
5. Step 5: Solve for x
   x = 9,180,993.45/3,443.24
6. Step 6: Final answer
   x = 2,666.38