Finding the Fourth Proportional to 2,009.42, 2,772.78 and 1,170.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,009.42 : 2,772.78 = 1,170.14 : x
2. Step 2: Convert to fraction form
   2,009.42/2,772.78 = 1,170.14/x
3. Step 3: Cross multiply
   2,009.42x = 2,772.78 × 1,170.14
4. Step 4: Simplify right side
   2,009.42x = 3,244,540.79
5. Step 5: Solve for x
   x = 3,244,540.79/2,009.42
6. Step 6: Final answer
   x = 1,614.67