Finding the Fourth Proportional to 2,174.57, 3,255.64 and 1,442.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,174.57 : 3,255.64 = 1,442.69 : x
2. Step 2: Convert to fraction form
   2,174.57/3,255.64 = 1,442.69/x
3. Step 3: Cross multiply
   2,174.57x = 3,255.64 × 1,442.69
4. Step 4: Simplify right side
   2,174.57x = 4,696,879.27
5. Step 5: Solve for x
   x = 4,696,879.27/2,174.57
6. Step 6: Final answer
   x = 2,159.91