Finding the Fourth Proportional to 1,103.76, 1,522.89 and 710.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,103.76 : 1,522.89 = 710.91 : x
2. Step 2: Convert to fraction form
   1,103.76/1,522.89 = 710.91/x
3. Step 3: Cross multiply
   1,103.76x = 1,522.89 × 710.91
4. Step 4: Simplify right side
   1,103.76x = 1,082,637.73
5. Step 5: Solve for x
   x = 1,082,637.73/1,103.76
6. Step 6: Final answer
   x = 980.86