Finding the Fourth Proportional to 1,170.43, 1,613.59 and 1,168.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,170.43 : 1,613.59 = 1,168.27 : x
2. Step 2: Convert to fraction form
   1,170.43/1,613.59 = 1,168.27/x
3. Step 3: Cross multiply
   1,170.43x = 1,613.59 × 1,168.27
4. Step 4: Simplify right side
   1,170.43x = 1,885,108.79
5. Step 5: Solve for x
   x = 1,885,108.79/1,170.43
6. Step 6: Final answer
   x = 1,610.61