Finding the Fourth Proportional to 2,496.69, 3,743.76 and 852.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,496.69 : 3,743.76 = 852.78 : x
2. Step 2: Convert to fraction form
   2,496.69/3,743.76 = 852.78/x
3. Step 3: Cross multiply
   2,496.69x = 3,743.76 × 852.78
4. Step 4: Simplify right side
   2,496.69x = 3,192,603.65
5. Step 5: Solve for x
   x = 3,192,603.65/2,496.69
6. Step 6: Final answer
   x = 1,278.73