Finding the Fourth Proportional to 1,452.88, 2,005.20 and 1,028.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,452.88 : 2,005.20 = 1,028.16 : x
2. Step 2: Convert to fraction form
   1,452.88/2,005.20 = 1,028.16/x
3. Step 3: Cross multiply
   1,452.88x = 2,005.20 × 1,028.16
4. Step 4: Simplify right side
   1,452.88x = 2,061,666.43
5. Step 5: Solve for x
   x = 2,061,666.43/1,452.88
6. Step 6: Final answer
   x = 1,419.02