Finding the Fourth Proportional to 2,231.82, 3,347.82 and 933.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,231.82 : 3,347.82 = 933.12 : x
2. Step 2: Convert to fraction form
   2,231.82/3,347.82 = 933.12/x
3. Step 3: Cross multiply
   2,231.82x = 3,347.82 × 933.12
4. Step 4: Simplify right side
   2,231.82x = 3,123,917.80
5. Step 5: Solve for x
   x = 3,123,917.80/2,231.82
6. Step 6: Final answer
   x = 1,399.72