Finding the Fourth Proportional to 1,980.37, 2,732.61 and 1,183.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,980.37 : 2,732.61 = 1,183.45 : x
2. Step 2: Convert to fraction form
   1,980.37/2,732.61 = 1,183.45/x
3. Step 3: Cross multiply
   1,980.37x = 2,732.61 × 1,183.45
4. Step 4: Simplify right side
   1,980.37x = 3,233,907.30
5. Step 5: Solve for x
   x = 3,233,907.30/1,980.37
6. Step 6: Final answer
   x = 1,632.98