Finding the Fourth Proportional to 2,310.16, 3,456.78 and 2,185.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,310.16 : 3,456.78 = 2,185.06 : x
2. Step 2: Convert to fraction form
   2,310.16/3,456.78 = 2,185.06/x
3. Step 3: Cross multiply
   2,310.16x = 3,456.78 × 2,185.06
4. Step 4: Simplify right side
   2,310.16x = 7,553,271.71
5. Step 5: Solve for x
   x = 7,553,271.71/2,310.16
6. Step 6: Final answer
   x = 3,269.59