Finding the Fourth Proportional to 2,021.96, 2,789.82 and 1,550.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,021.96 : 2,789.82 = 1,550.34 : x
2. Step 2: Convert to fraction form
   2,021.96/2,789.82 = 1,550.34/x
3. Step 3: Cross multiply
   2,021.96x = 2,789.82 × 1,550.34
4. Step 4: Simplify right side
   2,021.96x = 4,325,169.54
5. Step 5: Solve for x
   x = 4,325,169.54/2,021.96
6. Step 6: Final answer
   x = 2,139.10