Finding the Fourth Proportional to 2,725.14, 4,086.77 and 776.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,725.14 : 4,086.77 = 776.82 : x
2. Step 2: Convert to fraction form
   2,725.14/4,086.77 = 776.82/x
3. Step 3: Cross multiply
   2,725.14x = 4,086.77 × 776.82
4. Step 4: Simplify right side
   2,725.14x = 3,174,680.79
5. Step 5: Solve for x
   x = 3,174,680.79/2,725.14
6. Step 6: Final answer
   x = 1,164.96