Finding the Fourth Proportional to 3,531.27, 5,297.05 and 1,066.09

Step by Step Solution

1. Step 1: Write the proportion equation
   3,531.27 : 5,297.05 = 1,066.09 : x
2. Step 2: Convert to fraction form
   3,531.27/5,297.05 = 1,066.09/x
3. Step 3: Cross multiply
   3,531.27x = 5,297.05 × 1,066.09
4. Step 4: Simplify right side
   3,531.27x = 5,647,126.70
5. Step 5: Solve for x
   x = 5,647,126.70/3,531.27
6. Step 6: Final answer
   x = 1,599.18