Finding the Fourth Proportional to 2,295.17, 3,168.68 and 1,665.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,295.17 : 3,168.68 = 1,665.09 : x
2. Step 2: Convert to fraction form
   2,295.17/3,168.68 = 1,665.09/x
3. Step 3: Cross multiply
   2,295.17x = 3,168.68 × 1,665.09
4. Step 4: Simplify right side
   2,295.17x = 5,276,153.43
5. Step 5: Solve for x
   x = 5,276,153.43/2,295.17
6. Step 6: Final answer
   x = 2,298.80