Finding the Fourth Proportional to 2,169.05, 2,993.31 and 1,174.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,169.05 : 2,993.31 = 1,174.34 : x
2. Step 2: Convert to fraction form
   2,169.05/2,993.31 = 1,174.34/x
3. Step 3: Cross multiply
   2,169.05x = 2,993.31 × 1,174.34
4. Step 4: Simplify right side
   2,169.05x = 3,515,171.15
5. Step 5: Solve for x
   x = 3,515,171.15/2,169.05
6. Step 6: Final answer
   x = 1,620.61