Finding the Fourth Proportional to 2,723.94, 4,086.09 and 776.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,723.94 : 4,086.09 = 776.16 : x
2. Step 2: Convert to fraction form
   2,723.94/4,086.09 = 776.16/x
3. Step 3: Cross multiply
   2,723.94x = 4,086.09 × 776.16
4. Step 4: Simplify right side
   2,723.94x = 3,171,459.61
5. Step 5: Solve for x
   x = 3,171,459.61/2,723.94
6. Step 6: Final answer
   x = 1,164.29