Finding the Fourth Proportional to 2,943.54, 4,415.76 and 969.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,943.54 : 4,415.76 = 969.12 : x
2. Step 2: Convert to fraction form
   2,943.54/4,415.76 = 969.12/x
3. Step 3: Cross multiply
   2,943.54x = 4,415.76 × 969.12
4. Step 4: Simplify right side
   2,943.54x = 4,279,401.33
5. Step 5: Solve for x
   x = 4,279,401.33/2,943.54
6. Step 6: Final answer
   x = 1,453.83