Finding the Fourth Proportional to 2,089.49, 2,883.45 and 1,145.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,089.49 : 2,883.45 = 1,145.25 : x
2. Step 2: Convert to fraction form
   2,089.49/2,883.45 = 1,145.25/x
3. Step 3: Cross multiply
   2,089.49x = 2,883.45 × 1,145.25
4. Step 4: Simplify right side
   2,089.49x = 3,302,271.11
5. Step 5: Solve for x
   x = 3,302,271.11/2,089.49
6. Step 6: Final answer
   x = 1,580.42