Finding the Fourth Proportional to 2,736.50, 4,105.31 and 788.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,736.50 : 4,105.31 = 788.54 : x
2. Step 2: Convert to fraction form
   2,736.50/4,105.31 = 788.54/x
3. Step 3: Cross multiply
   2,736.50x = 4,105.31 × 788.54
4. Step 4: Simplify right side
   2,736.50x = 3,237,201.15
5. Step 5: Solve for x
   x = 3,237,201.15/2,736.50
6. Step 6: Final answer
   x = 1,182.97