Finding the Fourth Proportional to 3,300.62, 4,555.45 and 2,105.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,300.62 : 4,555.45 = 2,105.98 : x
2. Step 2: Convert to fraction form
   3,300.62/4,555.45 = 2,105.98/x
3. Step 3: Cross multiply
   3,300.62x = 4,555.45 × 2,105.98
4. Step 4: Simplify right side
   3,300.62x = 9,593,674.39
5. Step 5: Solve for x
   x = 9,593,674.39/3,300.62
6. Step 6: Final answer
   x = 2,906.63