Finding the Fourth Proportional to 2,449.81, 3,380.72 and 1,330.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,449.81 : 3,380.72 = 1,330.74 : x
2. Step 2: Convert to fraction form
   2,449.81/3,380.72 = 1,330.74/x
3. Step 3: Cross multiply
   2,449.81x = 3,380.72 × 1,330.74
4. Step 4: Simplify right side
   2,449.81x = 4,498,859.33
5. Step 5: Solve for x
   x = 4,498,859.33/2,449.81
6. Step 6: Final answer
   x = 1,836.41