Finding the Fourth Proportional to 2,969.72, 4,454.56 and 2,321

Step by Step Solution

1. Step 1: Write the proportion equation
   2,969.72 : 4,454.56 = 2,321 : x
2. Step 2: Convert to fraction form
   2,969.72/4,454.56 = 2,321/x
3. Step 3: Cross multiply
   2,969.72x = 4,454.56 × 2,321
4. Step 4: Simplify right side
   2,969.72x = 10,339,033.76
5. Step 5: Solve for x
   x = 10,339,033.76/2,969.72
6. Step 6: Final answer
   x = 3,481.48