Finding the Fourth Proportional to 2,205.58, 3,308.82 and 744.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,205.58 : 3,308.82 = 744.70 : x
2. Step 2: Convert to fraction form
   2,205.58/3,308.82 = 744.70/x
3. Step 3: Cross multiply
   2,205.58x = 3,308.82 × 744.70
4. Step 4: Simplify right side
   2,205.58x = 2,464,078.25
5. Step 5: Solve for x
   x = 2,464,078.25/2,205.58
6. Step 6: Final answer
   x = 1,117.20