Finding the Fourth Proportional to 1,601.51, 2,399.16 and 983.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,601.51 : 2,399.16 = 983.39 : x
2. Step 2: Convert to fraction form
   1,601.51/2,399.16 = 983.39/x
3. Step 3: Cross multiply
   1,601.51x = 2,399.16 × 983.39
4. Step 4: Simplify right side
   1,601.51x = 2,359,309.95
5. Step 5: Solve for x
   x = 2,359,309.95/1,601.51
6. Step 6: Final answer
   x = 1,473.18