Finding the Fourth Proportional to 2,864.69, 4,296.83 and 890.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,864.69 : 4,296.83 = 890.27 : x
2. Step 2: Convert to fraction form
   2,864.69/4,296.83 = 890.27/x
3. Step 3: Cross multiply
   2,864.69x = 4,296.83 × 890.27
4. Step 4: Simplify right side
   2,864.69x = 3,825,317.36
5. Step 5: Solve for x
   x = 3,825,317.36/2,864.69
6. Step 6: Final answer
   x = 1,335.33