Finding the Fourth Proportional to 3,552.15, 5,326.59 and 1,086.45

Step by Step Solution

1. Step 1: Write the proportion equation
   3,552.15 : 5,326.59 = 1,086.45 : x
2. Step 2: Convert to fraction form
   3,552.15/5,326.59 = 1,086.45/x
3. Step 3: Cross multiply
   3,552.15x = 5,326.59 × 1,086.45
4. Step 4: Simplify right side
   3,552.15x = 5,787,057.80
5. Step 5: Solve for x
   x = 5,787,057.80/3,552.15
6. Step 6: Final answer
   x = 1,629.17