Finding the Fourth Proportional to 1,103.88, 1,523.72 and 711.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,103.88 : 1,523.72 = 711.96 : x
2. Step 2: Convert to fraction form
   1,103.88/1,523.72 = 711.96/x
3. Step 3: Cross multiply
   1,103.88x = 1,523.72 × 711.96
4. Step 4: Simplify right side
   1,103.88x = 1,084,827.69
5. Step 5: Solve for x
   x = 1,084,827.69/1,103.88
6. Step 6: Final answer
   x = 982.74