Finding the Fourth Proportional to 1,443.89, 1,992.73 and 884.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.89 : 1,992.73 = 884.74 : x
2. Step 2: Convert to fraction form
   1,443.89/1,992.73 = 884.74/x
3. Step 3: Cross multiply
   1,443.89x = 1,992.73 × 884.74
4. Step 4: Simplify right side
   1,443.89x = 1,763,040.75
5. Step 5: Solve for x
   x = 1,763,040.75/1,443.89
6. Step 6: Final answer
   x = 1,221.03