Finding the Fourth Proportional to 2,391.37, 3,601.10 and 2,086.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,391.37 : 3,601.10 = 2,086.85 : x
2. Step 2: Convert to fraction form
   2,391.37/3,601.10 = 2,086.85/x
3. Step 3: Cross multiply
   2,391.37x = 3,601.10 × 2,086.85
4. Step 4: Simplify right side
   2,391.37x = 7,514,955.54
5. Step 5: Solve for x
   x = 7,514,955.54/2,391.37
6. Step 6: Final answer
   x = 3,142.53