Finding the Fourth Proportional to 2,447.82, 3,377.17 and 1,385.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,447.82 : 3,377.17 = 1,385.44 : x
2. Step 2: Convert to fraction form
   2,447.82/3,377.17 = 1,385.44/x
3. Step 3: Cross multiply
   2,447.82x = 3,377.17 × 1,385.44
4. Step 4: Simplify right side
   2,447.82x = 4,678,842.59
5. Step 5: Solve for x
   x = 4,678,842.59/2,447.82
6. Step 6: Final answer
   x = 1,911.44