Finding the Fourth Proportional to 3,103.74, 4,287.87 and 2,316.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,103.74 : 4,287.87 = 2,316.42 : x
2. Step 2: Convert to fraction form
   3,103.74/4,287.87 = 2,316.42/x
3. Step 3: Cross multiply
   3,103.74x = 4,287.87 × 2,316.42
4. Step 4: Simplify right side
   3,103.74x = 9,932,507.83
5. Step 5: Solve for x
   x = 9,932,507.83/3,103.74
6. Step 6: Final answer
   x = 3,200.17