Finding the Fourth Proportional to 3,456.16, 4,769.04 and 2,215.84

Step by Step Solution

1. Step 1: Write the proportion equation
   3,456.16 : 4,769.04 = 2,215.84 : x
2. Step 2: Convert to fraction form
   3,456.16/4,769.04 = 2,215.84/x
3. Step 3: Cross multiply
   3,456.16x = 4,769.04 × 2,215.84
4. Step 4: Simplify right side
   3,456.16x = 10,567,429.59
5. Step 5: Solve for x
   x = 10,567,429.59/3,456.16
6. Step 6: Final answer
   x = 3,057.56