Finding the Fourth Proportional to 2,019.87, 3,028.32 and 787.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.87 : 3,028.32 = 787.05 : x
2. Step 2: Convert to fraction form
   2,019.87/3,028.32 = 787.05/x
3. Step 3: Cross multiply
   2,019.87x = 3,028.32 × 787.05
4. Step 4: Simplify right side
   2,019.87x = 2,383,439.26
5. Step 5: Solve for x
   x = 2,383,439.26/2,019.87
6. Step 6: Final answer
   x = 1,180.00