Finding the Fourth Proportional to 2,386.41, 3,580.82 and 2,205.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,386.41 : 3,580.82 = 2,205.98 : x
2. Step 2: Convert to fraction form
   2,386.41/3,580.82 = 2,205.98/x
3. Step 3: Cross multiply
   2,386.41x = 3,580.82 × 2,205.98
4. Step 4: Simplify right side
   2,386.41x = 7,899,217.30
5. Step 5: Solve for x
   x = 7,899,217.30/2,386.41
6. Step 6: Final answer
   x = 3,310.08