Finding the Fourth Proportional to 2,169.45, 2,993.84 and 1,174.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,169.45 : 2,993.84 = 1,174.72 : x
2. Step 2: Convert to fraction form
   2,169.45/2,993.84 = 1,174.72/x
3. Step 3: Cross multiply
   2,169.45x = 2,993.84 × 1,174.72
4. Step 4: Simplify right side
   2,169.45x = 3,516,923.72
5. Step 5: Solve for x
   x = 3,516,923.72/2,169.45
6. Step 6: Final answer
   x = 1,621.11