Finding the Fourth Proportional to 2,859.75, 4,270.59 and 2,828.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,859.75 : 4,270.59 = 2,828.82 : x
2. Step 2: Convert to fraction form
   2,859.75/4,270.59 = 2,828.82/x
3. Step 3: Cross multiply
   2,859.75x = 4,270.59 × 2,828.82
4. Step 4: Simplify right side
   2,859.75x = 12,080,749.05
5. Step 5: Solve for x
   x = 12,080,749.05/2,859.75
6. Step 6: Final answer
   x = 4,224.41