Finding the Fourth Proportional to 2,613.37, 3,921.20 and 969.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.37 : 3,921.20 = 969.56 : x
2. Step 2: Convert to fraction form
   2,613.37/3,921.20 = 969.56/x
3. Step 3: Cross multiply
   2,613.37x = 3,921.20 × 969.56
4. Step 4: Simplify right side
   2,613.37x = 3,801,838.67
5. Step 5: Solve for x
   x = 3,801,838.67/2,613.37
6. Step 6: Final answer
   x = 1,454.76