Finding the Fourth Proportional to 2,121.92, 3,181.64 and 967.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,121.92 : 3,181.64 = 967.04 : x
2. Step 2: Convert to fraction form
   2,121.92/3,181.64 = 967.04/x
3. Step 3: Cross multiply
   2,121.92x = 3,181.64 × 967.04
4. Step 4: Simplify right side
   2,121.92x = 3,076,773.15
5. Step 5: Solve for x
   x = 3,076,773.15/2,121.92
6. Step 6: Final answer
   x = 1,449.99