Finding the Fourth Proportional to 3,663.30, 5,484.15 and 3,231.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,663.30 : 5,484.15 = 3,231.30 : x
2. Step 2: Convert to fraction form
   3,663.30/5,484.15 = 3,231.30/x
3. Step 3: Cross multiply
   3,663.30x = 5,484.15 × 3,231.30
4. Step 4: Simplify right side
   3,663.30x = 17,720,933.90
5. Step 5: Solve for x
   x = 17,720,933.90/3,663.30
6. Step 6: Final answer
   x = 4,837.42