Finding the Fourth Proportional to 2,203.92, 3,042.42 and 1,307.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,203.92 : 3,042.42 = 1,307.82 : x
2. Step 2: Convert to fraction form
   2,203.92/3,042.42 = 1,307.82/x
3. Step 3: Cross multiply
   2,203.92x = 3,042.42 × 1,307.82
4. Step 4: Simplify right side
   2,203.92x = 3,978,937.72
5. Step 5: Solve for x
   x = 3,978,937.72/2,203.92
6. Step 6: Final answer
   x = 1,805.39