Finding the Fourth Proportional to 2,608.30, 3,599.74 and 1,664.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,608.30 : 3,599.74 = 1,664.96 : x
2. Step 2: Convert to fraction form
   2,608.30/3,599.74 = 1,664.96/x
3. Step 3: Cross multiply
   2,608.30x = 3,599.74 × 1,664.96
4. Step 4: Simplify right side
   2,608.30x = 5,993,407.19
5. Step 5: Solve for x
   x = 5,993,407.19/2,608.30
6. Step 6: Final answer
   x = 2,297.82