Finding the Fourth Proportional to 1,411.92, 1,947.12 and 969.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,411.92 : 1,947.12 = 969.12 : x
2. Step 2: Convert to fraction form
   1,411.92/1,947.12 = 969.12/x
3. Step 3: Cross multiply
   1,411.92x = 1,947.12 × 969.12
4. Step 4: Simplify right side
   1,411.92x = 1,886,992.93
5. Step 5: Solve for x
   x = 1,886,992.93/1,411.92
6. Step 6: Final answer
   x = 1,336.47