Finding the Fourth Proportional to 1,411.40, 1,947.50 and 887.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,411.40 : 1,947.50 = 887.06 : x
2. Step 2: Convert to fraction form
   1,411.40/1,947.50 = 887.06/x
3. Step 3: Cross multiply
   1,411.40x = 1,947.50 × 887.06
4. Step 4: Simplify right side
   1,411.40x = 1,727,535.18
5. Step 5: Solve for x
   x = 1,727,535.18/1,411.40
6. Step 6: Final answer
   x = 1,223.99