Finding the Fourth Proportional to 2,168.16, 2,993 and 1,670.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,168.16 : 2,993 = 1,670.60 : x
2. Step 2: Convert to fraction form
   2,168.16/2,993 = 1,670.60/x
3. Step 3: Cross multiply
   2,168.16x = 2,993 × 1,670.60
4. Step 4: Simplify right side
   2,168.16x = 5,000,105.80
5. Step 5: Solve for x
   x = 5,000,105.80/2,168.16
6. Step 6: Final answer
   x = 2,306.15