Finding the Fourth Proportional to 2,185.92, 3,279.33 and 887.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,185.92 : 3,279.33 = 887.38 : x
2. Step 2: Convert to fraction form
   2,185.92/3,279.33 = 887.38/x
3. Step 3: Cross multiply
   2,185.92x = 3,279.33 × 887.38
4. Step 4: Simplify right side
   2,185.92x = 2,910,003.66
5. Step 5: Solve for x
   x = 2,910,003.66/2,185.92
6. Step 6: Final answer
   x = 1,331.25