Finding the Fourth Proportional to 1,519.56, 2,280.56 and 789.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,519.56 : 2,280.56 = 789.35 : x
2. Step 2: Convert to fraction form
   1,519.56/2,280.56 = 789.35/x
3. Step 3: Cross multiply
   1,519.56x = 2,280.56 × 789.35
4. Step 4: Simplify right side
   1,519.56x = 1,800,144.69
5. Step 5: Solve for x
   x = 1,800,144.69/1,519.56
6. Step 6: Final answer
   x = 1,184.65