Finding the Fourth Proportional to 2,028.09, 2,798.76 and 1,143.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,028.09 : 2,798.76 = 1,143.89 : x
2. Step 2: Convert to fraction form
   2,028.09/2,798.76 = 1,143.89/x
3. Step 3: Cross multiply
   2,028.09x = 2,798.76 × 1,143.89
4. Step 4: Simplify right side
   2,028.09x = 3,201,453.86
5. Step 5: Solve for x
   x = 3,201,453.86/2,028.09
6. Step 6: Final answer
   x = 1,578.56