Finding the Fourth Proportional to 951.89, 1,308.56 and 818.62

Step by Step Solution

1. Step 1: Write the proportion equation
   951.89 : 1,308.56 = 818.62 : x
2. Step 2: Convert to fraction form
   951.89/1,308.56 = 818.62/x
3. Step 3: Cross multiply
   951.89x = 1,308.56 × 818.62
4. Step 4: Simplify right side
   951.89x = 1,071,213.39
5. Step 5: Solve for x
   x = 1,071,213.39/951.89
6. Step 6: Final answer
   x = 1,125.36