Finding the Fourth Proportional to 3,636.32, 5,453.51 and 1,003.20

Step by Step Solution

1. Step 1: Write the proportion equation
   3,636.32 : 5,453.51 = 1,003.20 : x
2. Step 2: Convert to fraction form
   3,636.32/5,453.51 = 1,003.20/x
3. Step 3: Cross multiply
   3,636.32x = 5,453.51 × 1,003.20
4. Step 4: Simplify right side
   3,636.32x = 5,470,956.22
5. Step 5: Solve for x
   x = 5,470,956.22/3,636.32
6. Step 6: Final answer
   x = 1,504.53