Finding the Fourth Proportional to 2,237.12, 3,357.76 and 1,142.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,237.12 : 3,357.76 = 1,142.24 : x
2. Step 2: Convert to fraction form
   2,237.12/3,357.76 = 1,142.24/x
3. Step 3: Cross multiply
   2,237.12x = 3,357.76 × 1,142.24
4. Step 4: Simplify right side
   2,237.12x = 3,835,367.78
5. Step 5: Solve for x
   x = 3,835,367.78/2,237.12
6. Step 6: Final answer
   x = 1,714.42