Finding the Fourth Proportional to 2,185.65, 3,018.64 and 1,694.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,185.65 : 3,018.64 = 1,694.23 : x
2. Step 2: Convert to fraction form
   2,185.65/3,018.64 = 1,694.23/x
3. Step 3: Cross multiply
   2,185.65x = 3,018.64 × 1,694.23
4. Step 4: Simplify right side
   2,185.65x = 5,114,270.45
5. Step 5: Solve for x
   x = 5,114,270.45/2,185.65
6. Step 6: Final answer
   x = 2,339.93