Finding the Fourth Proportional to 1,665.74, 2,297.53 and 1,168.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.74 : 2,297.53 = 1,168.49 : x
2. Step 2: Convert to fraction form
   1,665.74/2,297.53 = 1,168.49/x
3. Step 3: Cross multiply
   1,665.74x = 2,297.53 × 1,168.49
4. Step 4: Simplify right side
   1,665.74x = 2,684,640.83
5. Step 5: Solve for x
   x = 2,684,640.83/1,665.74
6. Step 6: Final answer
   x = 1,611.68