Finding the Fourth Proportional to 2,447.81, 3,377.96 and 1,328.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,447.81 : 3,377.96 = 1,328.79 : x
2. Step 2: Convert to fraction form
   2,447.81/3,377.96 = 1,328.79/x
3. Step 3: Cross multiply
   2,447.81x = 3,377.96 × 1,328.79
4. Step 4: Simplify right side
   2,447.81x = 4,488,592.82
5. Step 5: Solve for x
   x = 4,488,592.82/2,447.81
6. Step 6: Final answer
   x = 1,833.72