Finding the Fourth Proportional to 1,353.43, 2,028.25 and 1,078.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,353.43 : 2,028.25 = 1,078.30 : x
2. Step 2: Convert to fraction form
   1,353.43/2,028.25 = 1,078.30/x
3. Step 3: Cross multiply
   1,353.43x = 2,028.25 × 1,078.30
4. Step 4: Simplify right side
   1,353.43x = 2,187,061.98
5. Step 5: Solve for x
   x = 2,187,061.98/1,353.43
6. Step 6: Final answer
   x = 1,615.94