Finding the Fourth Proportional to 2,020.28, 3,029.17 and 786.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,020.28 : 3,029.17 = 786.25 : x
2. Step 2: Convert to fraction form
   2,020.28/3,029.17 = 786.25/x
3. Step 3: Cross multiply
   2,020.28x = 3,029.17 × 786.25
4. Step 4: Simplify right side
   2,020.28x = 2,381,678.32
5. Step 5: Solve for x
   x = 2,381,678.32/2,020.28
6. Step 6: Final answer
   x = 1,178.89