Finding the Fourth Proportional to 2,275.05, 3,416.99 and 2,185.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,275.05 : 3,416.99 = 2,185.29 : x
2. Step 2: Convert to fraction form
   2,275.05/3,416.99 = 2,185.29/x
3. Step 3: Cross multiply
   2,275.05x = 3,416.99 × 2,185.29
4. Step 4: Simplify right side
   2,275.05x = 7,467,103.15
5. Step 5: Solve for x
   x = 7,467,103.15/2,275.05
6. Step 6: Final answer
   x = 3,282.17