Finding the Fourth Proportional to 2,089.88, 2,884.01 and 1,145.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,089.88 : 2,884.01 = 1,145.73 : x
2. Step 2: Convert to fraction form
   2,089.88/2,884.01 = 1,145.73/x
3. Step 3: Cross multiply
   2,089.88x = 2,884.01 × 1,145.73
4. Step 4: Simplify right side
   2,089.88x = 3,304,286.81
5. Step 5: Solve for x
   x = 3,304,286.81/2,089.88
6. Step 6: Final answer
   x = 1,581.09