Finding the Fourth Proportional to 2,736.28, 4,105.13 and 788.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,736.28 : 4,105.13 = 788.50 : x
2. Step 2: Convert to fraction form
   2,736.28/4,105.13 = 788.50/x
3. Step 3: Cross multiply
   2,736.28x = 4,105.13 × 788.50
4. Step 4: Simplify right side
   2,736.28x = 3,236,895.01
5. Step 5: Solve for x
   x = 3,236,895.01/2,736.28
6. Step 6: Final answer
   x = 1,182.95