Finding the Fourth Proportional to 3,669.01, 5,500.18 and 1,328.47

Step by Step Solution

1. Step 1: Write the proportion equation
   3,669.01 : 5,500.18 = 1,328.47 : x
2. Step 2: Convert to fraction form
   3,669.01/5,500.18 = 1,328.47/x
3. Step 3: Cross multiply
   3,669.01x = 5,500.18 × 1,328.47
4. Step 4: Simplify right side
   3,669.01x = 7,306,824.12
5. Step 5: Solve for x
   x = 7,306,824.12/3,669.01
6. Step 6: Final answer
   x = 1,991.50