Finding the Fourth Proportional to 1,411.40, 1,947.42 and 887.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,411.40 : 1,947.42 = 887.24 : x
2. Step 2: Convert to fraction form
   1,411.40/1,947.42 = 887.24/x
3. Step 3: Cross multiply
   1,411.40x = 1,947.42 × 887.24
4. Step 4: Simplify right side
   1,411.40x = 1,727,828.92
5. Step 5: Solve for x
   x = 1,727,828.92/1,411.40
6. Step 6: Final answer
   x = 1,224.20