Finding the Fourth Proportional to 1,103.82, 1,523.78 and 711.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,103.82 : 1,523.78 = 711.06 : x
2. Step 2: Convert to fraction form
   1,103.82/1,523.78 = 711.06/x
3. Step 3: Cross multiply
   1,103.82x = 1,523.78 × 711.06
4. Step 4: Simplify right side
   1,103.82x = 1,083,499.01
5. Step 5: Solve for x
   x = 1,083,499.01/1,103.82
6. Step 6: Final answer
   x = 981.59