Finding the Fourth Proportional to 2,028.30, 2,847.30 and 2,028.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,028.30 : 2,847.30 = 2,028.30 : x
2. Step 2: Convert to fraction form
   2,028.30/2,847.30 = 2,028.30/x
3. Step 3: Cross multiply
   2,028.30x = 2,847.30 × 2,028.30
4. Step 4: Simplify right side
   2,028.30x = 5,775,178.59
5. Step 5: Solve for x
   x = 5,775,178.59/2,028.30
6. Step 6: Final answer
   x = 2,847.30