Finding the Fourth Proportional to 2,009.34, 2,772.90 and 1,170.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,009.34 : 2,772.90 = 1,170.05 : x
2. Step 2: Convert to fraction form
   2,009.34/2,772.90 = 1,170.05/x
3. Step 3: Cross multiply
   2,009.34x = 2,772.90 × 1,170.05
4. Step 4: Simplify right side
   2,009.34x = 3,244,417.78
5. Step 5: Solve for x
   x = 3,244,417.78/2,009.34
6. Step 6: Final answer
   x = 1,614.67