Finding the Fourth Proportional to 2,864.40, 3,951.72 and 2,200.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,864.40 : 3,951.72 = 2,200.08 : x
2. Step 2: Convert to fraction form
   2,864.40/3,951.72 = 2,200.08/x
3. Step 3: Cross multiply
   2,864.40x = 3,951.72 × 2,200.08
4. Step 4: Simplify right side
   2,864.40x = 8,694,100.14
5. Step 5: Solve for x
   x = 8,694,100.14/2,864.40
6. Step 6: Final answer
   x = 3,035.23