Finding the Fourth Proportional to 2,493.99, 3,443.31 and 2,231.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,493.99 : 3,443.31 = 2,231.55 : x
2. Step 2: Convert to fraction form
   2,493.99/3,443.31 = 2,231.55/x
3. Step 3: Cross multiply
   2,493.99x = 3,443.31 × 2,231.55
4. Step 4: Simplify right side
   2,493.99x = 7,683,918.43
5. Step 5: Solve for x
   x = 7,683,918.43/2,493.99
6. Step 6: Final answer
   x = 3,080.97