Finding the Fourth Proportional to 2,238.39, 3,357.93 and 1,142.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238.39 : 3,357.93 = 1,142.16 : x
2. Step 2: Convert to fraction form
   2,238.39/3,357.93 = 1,142.16/x
3. Step 3: Cross multiply
   2,238.39x = 3,357.93 × 1,142.16
4. Step 4: Simplify right side
   2,238.39x = 3,835,293.33
5. Step 5: Solve for x
   x = 3,835,293.33/2,238.39
6. Step 6: Final answer
   x = 1,713.42