Finding the Fourth Proportional to 2,114.29, 2,917.69 and 1,170.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,114.29 : 2,917.69 = 1,170.12 : x
2. Step 2: Convert to fraction form
   2,114.29/2,917.69 = 1,170.12/x
3. Step 3: Cross multiply
   2,114.29x = 2,917.69 × 1,170.12
4. Step 4: Simplify right side
   2,114.29x = 3,414,044.50
5. Step 5: Solve for x
   x = 3,414,044.50/2,114.29
6. Step 6: Final answer
   x = 1,614.75