Finding the Fourth Proportional to 2,443.42, 3,665.81 and 983.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.42 : 3,665.81 = 983.60 : x
2. Step 2: Convert to fraction form
   2,443.42/3,665.81 = 983.60/x
3. Step 3: Cross multiply
   2,443.42x = 3,665.81 × 983.60
4. Step 4: Simplify right side
   2,443.42x = 3,605,690.72
5. Step 5: Solve for x
   x = 3,605,690.72/2,443.42
6. Step 6: Final answer
   x = 1,475.67