Finding the Fourth Proportional to 1,411.72, 1,947.86 and 969.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,411.72 : 1,947.86 = 969.46 : x
2. Step 2: Convert to fraction form
   1,411.72/1,947.86 = 969.46/x
3. Step 3: Cross multiply
   1,411.72x = 1,947.86 × 969.46
4. Step 4: Simplify right side
   1,411.72x = 1,888,372.36
5. Step 5: Solve for x
   x = 1,888,372.36/1,411.72
6. Step 6: Final answer
   x = 1,337.64