Finding the Fourth Proportional to 2,286.83, 3,429.90 and 900.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,286.83 : 3,429.90 = 900.07 : x
2. Step 2: Convert to fraction form
   2,286.83/3,429.90 = 900.07/x
3. Step 3: Cross multiply
   2,286.83x = 3,429.90 × 900.07
4. Step 4: Simplify right side
   2,286.83x = 3,087,141.52
5. Step 5: Solve for x
   x = 3,087,141.52/2,286.83
6. Step 6: Final answer
   x = 1,349.96