Finding the Fourth Proportional to 3,111.86, 4,668.51 and 1,814.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,111.86 : 4,668.51 = 1,814.42 : x
2. Step 2: Convert to fraction form
   3,111.86/4,668.51 = 1,814.42/x
3. Step 3: Cross multiply
   3,111.86x = 4,668.51 × 1,814.42
4. Step 4: Simplify right side
   3,111.86x = 8,470,637.91
5. Step 5: Solve for x
   x = 8,470,637.91/3,111.86
6. Step 6: Final answer
   x = 2,722.05