Finding the Fourth Proportional to 2,185.38, 3,276.86 and 885.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,185.38 : 3,276.86 = 885.33 : x
2. Step 2: Convert to fraction form
   2,185.38/3,276.86 = 885.33/x
3. Step 3: Cross multiply
   2,185.38x = 3,276.86 × 885.33
4. Step 4: Simplify right side
   2,185.38x = 2,901,098.04
5. Step 5: Solve for x
   x = 2,901,098.04/2,185.38
6. Step 6: Final answer
   x = 1,327.50