Finding the Fourth Proportional to 2,019.89, 3,029.03 and 787.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.89 : 3,029.03 = 787.12 : x
2. Step 2: Convert to fraction form
   2,019.89/3,029.03 = 787.12/x
3. Step 3: Cross multiply
   2,019.89x = 3,029.03 × 787.12
4. Step 4: Simplify right side
   2,019.89x = 2,384,198.59
5. Step 5: Solve for x
   x = 2,384,198.59/2,019.89
6. Step 6: Final answer
   x = 1,180.36