Finding the Fourth Proportional to 2,627.82, 3,940.52 and 778.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,627.82 : 3,940.52 = 778.27 : x
2. Step 2: Convert to fraction form
   2,627.82/3,940.52 = 778.27/x
3. Step 3: Cross multiply
   2,627.82x = 3,940.52 × 778.27
4. Step 4: Simplify right side
   2,627.82x = 3,066,788.50
5. Step 5: Solve for x
   x = 3,066,788.50/2,627.82
6. Step 6: Final answer
   x = 1,167.05