Finding the Fourth Proportional to 2,757.69, 3,805.56 and 1,578.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,757.69 : 3,805.56 = 1,578.69 : x
2. Step 2: Convert to fraction form
   2,757.69/3,805.56 = 1,578.69/x
3. Step 3: Cross multiply
   2,757.69x = 3,805.56 × 1,578.69
4. Step 4: Simplify right side
   2,757.69x = 6,007,799.52
5. Step 5: Solve for x
   x = 6,007,799.52/2,757.69
6. Step 6: Final answer
   x = 2,178.56