Finding the Fourth Proportional to 2,449.48, 3,380.31 and 1,330.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,449.48 : 3,380.31 = 1,330.43 : x
2. Step 2: Convert to fraction form
   2,449.48/3,380.31 = 1,330.43/x
3. Step 3: Cross multiply
   2,449.48x = 3,380.31 × 1,330.43
4. Step 4: Simplify right side
   2,449.48x = 4,497,265.83
5. Step 5: Solve for x
   x = 4,497,265.83/2,449.48
6. Step 6: Final answer
   x = 1,836.01