Finding the Fourth Proportional to 2,021.52, 2,788.53 and 1,359.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,021.52 : 2,788.53 = 1,359.28 : x
2. Step 2: Convert to fraction form
   2,021.52/2,788.53 = 1,359.28/x
3. Step 3: Cross multiply
   2,021.52x = 2,788.53 × 1,359.28
4. Step 4: Simplify right side
   2,021.52x = 3,790,391.45
5. Step 5: Solve for x
   x = 3,790,391.45/2,021.52
6. Step 6: Final answer
   x = 1,875.02