Finding the Fourth Proportional to 2,788.69, 4,174.82 and 2,442.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,788.69 : 4,174.82 = 2,442.70 : x
2. Step 2: Convert to fraction form
   2,788.69/4,174.82 = 2,442.70/x
3. Step 3: Cross multiply
   2,788.69x = 4,174.82 × 2,442.70
4. Step 4: Simplify right side
   2,788.69x = 10,197,831.93
5. Step 5: Solve for x
   x = 10,197,831.93/2,788.69
6. Step 6: Final answer
   x = 3,656.85