Finding the Fourth Proportional to 1,685.54, 2,524.67 and 1,067.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,685.54 : 2,524.67 = 1,067.72 : x
2. Step 2: Convert to fraction form
   1,685.54/2,524.67 = 1,067.72/x
3. Step 3: Cross multiply
   1,685.54x = 2,524.67 × 1,067.72
4. Step 4: Simplify right side
   1,685.54x = 2,695,626.69
5. Step 5: Solve for x
   x = 2,695,626.69/1,685.54
6. Step 6: Final answer
   x = 1,599.26