Finding the Fourth Proportional to 2,233.49, 3,082.64 and 1,289.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,233.49 : 3,082.64 = 1,289.89 : x
2. Step 2: Convert to fraction form
   2,233.49/3,082.64 = 1,289.89/x
3. Step 3: Cross multiply
   2,233.49x = 3,082.64 × 1,289.89
4. Step 4: Simplify right side
   2,233.49x = 3,976,262.03
5. Step 5: Solve for x
   x = 3,976,262.03/2,233.49
6. Step 6: Final answer
   x = 1,780.29