Finding the Fourth Proportional to 2,285.00, 3,429.45 and 899.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,285.00 : 3,429.45 = 899.31 : x
2. Step 2: Convert to fraction form
   2,285.00/3,429.45 = 899.31/x
3. Step 3: Cross multiply
   2,285.00x = 3,429.45 × 899.31
4. Step 4: Simplify right side
   2,285.00x = 3,084,138.68
5. Step 5: Solve for x
   x = 3,084,138.68/2,285.00
6. Step 6: Final answer
   x = 1,349.74