Finding the Fourth Proportional to 1,235.82, 1,705.46 and 676.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,235.82 : 1,705.46 = 676.31 : x
2. Step 2: Convert to fraction form
   1,235.82/1,705.46 = 676.31/x
3. Step 3: Cross multiply
   1,235.82x = 1,705.46 × 676.31
4. Step 4: Simplify right side
   1,235.82x = 1,153,412.54
5. Step 5: Solve for x
   x = 1,153,412.54/1,235.82
6. Step 6: Final answer
   x = 933.32