Finding the Fourth Proportional to 3,581.58, 5,372.56 and 984.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,581.58 : 5,372.56 = 984.72 : x
2. Step 2: Convert to fraction form
   3,581.58/5,372.56 = 984.72/x
3. Step 3: Cross multiply
   3,581.58x = 5,372.56 × 984.72
4. Step 4: Simplify right side
   3,581.58x = 5,290,467.28
5. Step 5: Solve for x
   x = 5,290,467.28/3,581.58
6. Step 6: Final answer
   x = 1,477.13