Finding the Fourth Proportional to 1,983.99, 2,738.29 and 1,145.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,983.99 : 2,738.29 = 1,145.24 : x
2. Step 2: Convert to fraction form
   1,983.99/2,738.29 = 1,145.24/x
3. Step 3: Cross multiply
   1,983.99x = 2,738.29 × 1,145.24
4. Step 4: Simplify right side
   1,983.99x = 3,135,982.69
5. Step 5: Solve for x
   x = 3,135,982.69/1,983.99
6. Step 6: Final answer
   x = 1,580.64