Finding the Fourth Proportional to 2,181.72, 3,273.12 and 949.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,181.72 : 3,273.12 = 949.35 : x
2. Step 2: Convert to fraction form
   2,181.72/3,273.12 = 949.35/x
3. Step 3: Cross multiply
   2,181.72x = 3,273.12 × 949.35
4. Step 4: Simplify right side
   2,181.72x = 3,107,336.47
5. Step 5: Solve for x
   x = 3,107,336.47/2,181.72
6. Step 6: Final answer
   x = 1,424.26