Finding the Fourth Proportional to 3,552.03, 5,328.69 and 1,086.81

Step by Step Solution

1. Step 1: Write the proportion equation
   3,552.03 : 5,328.69 = 1,086.81 : x
2. Step 2: Convert to fraction form
   3,552.03/5,328.69 = 1,086.81/x
3. Step 3: Cross multiply
   3,552.03x = 5,328.69 × 1,086.81
4. Step 4: Simplify right side
   3,552.03x = 5,791,273.58
5. Step 5: Solve for x
   x = 5,791,273.58/3,552.03
6. Step 6: Final answer
   x = 1,630.41