Finding the Fourth Proportional to 1,411.71, 1,947.87 and 969.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,411.71 : 1,947.87 = 969.45 : x
2. Step 2: Convert to fraction form
   1,411.71/1,947.87 = 969.45/x
3. Step 3: Cross multiply
   1,411.71x = 1,947.87 × 969.45
4. Step 4: Simplify right side
   1,411.71x = 1,888,362.57
5. Step 5: Solve for x
   x = 1,888,362.57/1,411.71
6. Step 6: Final answer
   x = 1,337.64