Finding the Fourth Proportional to 2,089.94, 2,884.05 and 1,145.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,089.94 : 2,884.05 = 1,145.71 : x
2. Step 2: Convert to fraction form
   2,089.94/2,884.05 = 1,145.71/x
3. Step 3: Cross multiply
   2,089.94x = 2,884.05 × 1,145.71
4. Step 4: Simplify right side
   2,089.94x = 3,304,294.40
5. Step 5: Solve for x
   x = 3,304,294.40/2,089.94
6. Step 6: Final answer
   x = 1,581.04