Finding the Fourth Proportional to 2,028.48, 2,798.64 and 1,144.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,028.48 : 2,798.64 = 1,144.05 : x
2. Step 2: Convert to fraction form
   2,028.48/2,798.64 = 1,144.05/x
3. Step 3: Cross multiply
   2,028.48x = 2,798.64 × 1,144.05
4. Step 4: Simplify right side
   2,028.48x = 3,201,784.09
5. Step 5: Solve for x
   x = 3,201,784.09/2,028.48
6. Step 6: Final answer
   x = 1,578.42