Finding the Fourth Proportional to 2,162.39, 3,238.37 and 1,235.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,162.39 : 3,238.37 = 1,235.13 : x
2. Step 2: Convert to fraction form
   2,162.39/3,238.37 = 1,235.13/x
3. Step 3: Cross multiply
   2,162.39x = 3,238.37 × 1,235.13
4. Step 4: Simplify right side
   2,162.39x = 3,999,807.94
5. Step 5: Solve for x
   x = 3,999,807.94/2,162.39
6. Step 6: Final answer
   x = 1,849.72