Finding the Fourth Proportional to 1,236.27, 1,705.98 and 676.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,236.27 : 1,705.98 = 676.63 : x
2. Step 2: Convert to fraction form
   1,236.27/1,705.98 = 676.63/x
3. Step 3: Cross multiply
   1,236.27x = 1,705.98 × 676.63
4. Step 4: Simplify right side
   1,236.27x = 1,154,308.72
5. Step 5: Solve for x
   x = 1,154,308.72/1,236.27
6. Step 6: Final answer
   x = 933.71