Finding the Fourth Proportional to 3,144.86, 4,712.81 and 2,316.62

Step by Step Solution

1. Step 1: Write the proportion equation
   3,144.86 : 4,712.81 = 2,316.62 : x
2. Step 2: Convert to fraction form
   3,144.86/4,712.81 = 2,316.62/x
3. Step 3: Cross multiply
   3,144.86x = 4,712.81 × 2,316.62
4. Step 4: Simplify right side
   3,144.86x = 10,917,789.90
5. Step 5: Solve for x
   x = 10,917,789.90/3,144.86
6. Step 6: Final answer
   x = 3,471.63