Finding the Fourth Proportional to 2,519.72, 3,779.67 and 789.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,519.72 : 3,779.67 = 789.56 : x
2. Step 2: Convert to fraction form
   2,519.72/3,779.67 = 789.56/x
3. Step 3: Cross multiply
   2,519.72x = 3,779.67 × 789.56
4. Step 4: Simplify right side
   2,519.72x = 2,984,276.25
5. Step 5: Solve for x
   x = 2,984,276.25/2,519.72
6. Step 6: Final answer
   x = 1,184.37