Finding the Fourth Proportional to 1,601.47, 2,399.55 and 983.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,601.47 : 2,399.55 = 983.87 : x
2. Step 2: Convert to fraction form
   1,601.47/2,399.55 = 983.87/x
3. Step 3: Cross multiply
   1,601.47x = 2,399.55 × 983.87
4. Step 4: Simplify right side
   1,601.47x = 2,360,845.26
5. Step 5: Solve for x
   x = 2,360,845.26/1,601.47
6. Step 6: Final answer
   x = 1,474.17