Finding the Fourth Proportional to 2,736.48, 4,105.32 and 788.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,736.48 : 4,105.32 = 788.76 : x
2. Step 2: Convert to fraction form
   2,736.48/4,105.32 = 788.76/x
3. Step 3: Cross multiply
   2,736.48x = 4,105.32 × 788.76
4. Step 4: Simplify right side
   2,736.48x = 3,238,112.20
5. Step 5: Solve for x
   x = 3,238,112.20/2,736.48
6. Step 6: Final answer
   x = 1,183.31