Finding the Fourth Proportional to 2,238.98, 3,354.35 and 1,067.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238.98 : 3,354.35 = 1,067.72 : x
2. Step 2: Convert to fraction form
   2,238.98/3,354.35 = 1,067.72/x
3. Step 3: Cross multiply
   2,238.98x = 3,354.35 × 1,067.72
4. Step 4: Simplify right side
   2,238.98x = 3,581,484.47
5. Step 5: Solve for x
   x = 3,581,484.47/2,238.98
6. Step 6: Final answer
   x = 1,599.61