Finding the Fourth Proportional to 1,443.75, 1,992.41 and 884.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.75 : 1,992.41 = 884.21 : x
2. Step 2: Convert to fraction form
   1,443.75/1,992.41 = 884.21/x
3. Step 3: Cross multiply
   1,443.75x = 1,992.41 × 884.21
4. Step 4: Simplify right side
   1,443.75x = 1,761,697.78
5. Step 5: Solve for x
   x = 1,761,697.78/1,443.75
6. Step 6: Final answer
   x = 1,220.23