Finding the Fourth Proportional to 2,186.96, 3,281.79 and 954.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,186.96 : 3,281.79 = 954.38 : x
2. Step 2: Convert to fraction form
   2,186.96/3,281.79 = 954.38/x
3. Step 3: Cross multiply
   2,186.96x = 3,281.79 × 954.38
4. Step 4: Simplify right side
   2,186.96x = 3,132,058.33
5. Step 5: Solve for x
   x = 3,132,058.33/2,186.96
6. Step 6: Final answer
   x = 1,432.15