Finding the Fourth Proportional to 2,727.69, 4,092.14 and 780.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,727.69 : 4,092.14 = 780.04 : x
2. Step 2: Convert to fraction form
   2,727.69/4,092.14 = 780.04/x
3. Step 3: Cross multiply
   2,727.69x = 4,092.14 × 780.04
4. Step 4: Simplify right side
   2,727.69x = 3,192,032.89
5. Step 5: Solve for x
   x = 3,192,032.89/2,727.69
6. Step 6: Final answer
   x = 1,170.23