Finding the Fourth Proportional to 2,287.92, 3,429.53 and 900.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,287.92 : 3,429.53 = 900.69 : x
2. Step 2: Convert to fraction form
   2,287.92/3,429.53 = 900.69/x
3. Step 3: Cross multiply
   2,287.92x = 3,429.53 × 900.69
4. Step 4: Simplify right side
   2,287.92x = 3,088,951.73
5. Step 5: Solve for x
   x = 3,088,951.73/2,287.92
6. Step 6: Final answer
   x = 1,350.11