Finding the Fourth Proportional to 3,111.18, 4,292.92 and 1,933.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,111.18 : 4,292.92 = 1,933.86 : x
2. Step 2: Convert to fraction form
   3,111.18/4,292.92 = 1,933.86/x
3. Step 3: Cross multiply
   3,111.18x = 4,292.92 × 1,933.86
4. Step 4: Simplify right side
   3,111.18x = 8,301,906.27
5. Step 5: Solve for x
   x = 8,301,906.27/3,111.18
6. Step 6: Final answer
   x = 2,668.41