Finding the Fourth Proportional to 2,443.28, 3,371.36 and 1,395.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.28 : 3,371.36 = 1,395.12 : x
2. Step 2: Convert to fraction form
   2,443.28/3,371.36 = 1,395.12/x
3. Step 3: Cross multiply
   2,443.28x = 3,371.36 × 1,395.12
4. Step 4: Simplify right side
   2,443.28x = 4,703,451.76
5. Step 5: Solve for x
   x = 4,703,451.76/2,443.28
6. Step 6: Final answer
   x = 1,925.06