Finding the Fourth Proportional to 1,145.00, 1,581.15 and 1,083.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,145.00 : 1,581.15 = 1,083.62 : x
2. Step 2: Convert to fraction form
   1,145.00/1,581.15 = 1,083.62/x
3. Step 3: Cross multiply
   1,145.00x = 1,581.15 × 1,083.62
4. Step 4: Simplify right side
   1,145.00x = 1,713,357.86
5. Step 5: Solve for x
   x = 1,713,357.86/1,145.00
6. Step 6: Final answer
   x = 1,496.39