Finding the Fourth Proportional to 2,447.69, 3,377.72 and 1,328.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,447.69 : 3,377.72 = 1,328.60 : x
2. Step 2: Convert to fraction form
   2,447.69/3,377.72 = 1,328.60/x
3. Step 3: Cross multiply
   2,447.69x = 3,377.72 × 1,328.60
4. Step 4: Simplify right side
   2,447.69x = 4,487,625.22
5. Step 5: Solve for x
   x = 4,487,625.22/2,447.69
6. Step 6: Final answer
   x = 1,833.41