Finding the Fourth Proportional to 1,411.84, 1,947.67 and 887.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,411.84 : 1,947.67 = 887.50 : x
2. Step 2: Convert to fraction form
   1,411.84/1,947.67 = 887.50/x
3. Step 3: Cross multiply
   1,411.84x = 1,947.67 × 887.50
4. Step 4: Simplify right side
   1,411.84x = 1,728,557.13
5. Step 5: Solve for x
   x = 1,728,557.13/1,411.84
6. Step 6: Final answer
   x = 1,224.33