Finding the Fourth Proportional to 2,824.72, 3,894.38 and 2,318.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,824.72 : 3,894.38 = 2,318.72 : x
2. Step 2: Convert to fraction form
   2,824.72/3,894.38 = 2,318.72/x
3. Step 3: Cross multiply
   2,824.72x = 3,894.38 × 2,318.72
4. Step 4: Simplify right side
   2,824.72x = 9,029,976.79
5. Step 5: Solve for x
   x = 9,029,976.79/2,824.72
6. Step 6: Final answer
   x = 3,196.77