Finding the Fourth Proportional to 2,020.34, 3,028.74 and 786.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,020.34 : 3,028.74 = 786.89 : x
2. Step 2: Convert to fraction form
   2,020.34/3,028.74 = 786.89/x
3. Step 3: Cross multiply
   2,020.34x = 3,028.74 × 786.89
4. Step 4: Simplify right side
   2,020.34x = 2,383,270.07
5. Step 5: Solve for x
   x = 2,383,270.07/2,020.34
6. Step 6: Final answer
   x = 1,179.64