Finding the Fourth Proportional to 2,543.82, 3,815.96 and 788.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,543.82 : 3,815.96 = 788.83 : x
2. Step 2: Convert to fraction form
   2,543.82/3,815.96 = 788.83/x
3. Step 3: Cross multiply
   2,543.82x = 3,815.96 × 788.83
4. Step 4: Simplify right side
   2,543.82x = 3,010,139.78
5. Step 5: Solve for x
   x = 3,010,139.78/2,543.82
6. Step 6: Final answer
   x = 1,183.32