Finding the Fourth Proportional to 1,485.29, 2,049.84 and 896.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,485.29 : 2,049.84 = 896.31 : x
2. Step 2: Convert to fraction form
   1,485.29/2,049.84 = 896.31/x
3. Step 3: Cross multiply
   1,485.29x = 2,049.84 × 896.31
4. Step 4: Simplify right side
   1,485.29x = 1,837,292.09
5. Step 5: Solve for x
   x = 1,837,292.09/1,485.29
6. Step 6: Final answer
   x = 1,236.99