Finding the Fourth Proportional to 1,411.54, 1,947.72 and 887.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,411.54 : 1,947.72 = 887.74 : x
2. Step 2: Convert to fraction form
   1,411.54/1,947.72 = 887.74/x
3. Step 3: Cross multiply
   1,411.54x = 1,947.72 × 887.74
4. Step 4: Simplify right side
   1,411.54x = 1,729,068.95
5. Step 5: Solve for x
   x = 1,729,068.95/1,411.54
6. Step 6: Final answer
   x = 1,224.95