Finding the Fourth Proportional to 1,443.35, 1,992.34 and 883.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.35 : 1,992.34 = 883.69 : x
2. Step 2: Convert to fraction form
   1,443.35/1,992.34 = 883.69/x
3. Step 3: Cross multiply
   1,443.35x = 1,992.34 × 883.69
4. Step 4: Simplify right side
   1,443.35x = 1,760,606.52
5. Step 5: Solve for x
   x = 1,760,606.52/1,443.35
6. Step 6: Final answer
   x = 1,219.81