Finding the Fourth Proportional to 1,282.78, 1,770.82 and 968.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,282.78 : 1,770.82 = 968.18 : x
2. Step 2: Convert to fraction form
   1,282.78/1,770.82 = 968.18/x
3. Step 3: Cross multiply
   1,282.78x = 1,770.82 × 968.18
4. Step 4: Simplify right side
   1,282.78x = 1,714,472.51
5. Step 5: Solve for x
   x = 1,714,472.51/1,282.78
6. Step 6: Final answer
   x = 1,336.53