Finding the Fourth Proportional to 2,205.03, 3,042.57 and 1,308.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,205.03 : 3,042.57 = 1,308.36 : x
2. Step 2: Convert to fraction form
   2,205.03/3,042.57 = 1,308.36/x
3. Step 3: Cross multiply
   2,205.03x = 3,042.57 × 1,308.36
4. Step 4: Simplify right side
   2,205.03x = 3,980,776.89
5. Step 5: Solve for x
   x = 3,980,776.89/2,205.03
6. Step 6: Final answer
   x = 1,805.32