Finding the Fourth Proportional to 2,092.38, 3,137.13 and 1,215.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,092.38 : 3,137.13 = 1,215.42 : x
2. Step 2: Convert to fraction form
   2,092.38/3,137.13 = 1,215.42/x
3. Step 3: Cross multiply
   2,092.38x = 3,137.13 × 1,215.42
4. Step 4: Simplify right side
   2,092.38x = 3,812,930.54
5. Step 5: Solve for x
   x = 3,812,930.54/2,092.38
6. Step 6: Final answer
   x = 1,822.29