Finding the Fourth Proportional to 1,443.36, 1,992.64 and 883.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.36 : 1,992.64 = 883.94 : x
2. Step 2: Convert to fraction form
   1,443.36/1,992.64 = 883.94/x
3. Step 3: Cross multiply
   1,443.36x = 1,992.64 × 883.94
4. Step 4: Simplify right side
   1,443.36x = 1,761,374.20
5. Step 5: Solve for x
   x = 1,761,374.20/1,443.36
6. Step 6: Final answer
   x = 1,220.33