Finding the Fourth Proportional to 3,085.92, 4,624.56 and 2,216.16

Step by Step Solution

1. Step 1: Write the proportion equation
   3,085.92 : 4,624.56 = 2,216.16 : x
2. Step 2: Convert to fraction form
   3,085.92/4,624.56 = 2,216.16/x
3. Step 3: Cross multiply
   3,085.92x = 4,624.56 × 2,216.16
4. Step 4: Simplify right side
   3,085.92x = 10,248,764.89
5. Step 5: Solve for x
   x = 10,248,764.89/3,085.92
6. Step 6: Final answer
   x = 3,321.14