Finding the Fourth Proportional to 2,857.86, 3,944.13 and 1,796.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,857.86 : 3,944.13 = 1,796.42 : x
2. Step 2: Convert to fraction form
   2,857.86/3,944.13 = 1,796.42/x
3. Step 3: Cross multiply
   2,857.86x = 3,944.13 × 1,796.42
4. Step 4: Simplify right side
   2,857.86x = 7,085,314.89
5. Step 5: Solve for x
   x = 7,085,314.89/2,857.86
6. Step 6: Final answer
   x = 2,479.24