Finding the Fourth Proportional to 1,100.76, 1,517.72 and 951.11

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.76 : 1,517.72 = 951.11 : x
2. Step 2: Convert to fraction form
   1,100.76/1,517.72 = 951.11/x
3. Step 3: Cross multiply
   1,100.76x = 1,517.72 × 951.11
4. Step 4: Simplify right side
   1,100.76x = 1,443,512.02
5. Step 5: Solve for x
   x = 1,443,512.02/1,100.76
6. Step 6: Final answer
   x = 1,311.38