Finding the Fourth Proportional to 2,019.53, 3,028.51 and 786.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.53 : 3,028.51 = 786.77 : x
2. Step 2: Convert to fraction form
   2,019.53/3,028.51 = 786.77/x
3. Step 3: Cross multiply
   2,019.53x = 3,028.51 × 786.77
4. Step 4: Simplify right side
   2,019.53x = 2,382,740.81
5. Step 5: Solve for x
   x = 2,382,740.81/2,019.53
6. Step 6: Final answer
   x = 1,179.85