Finding the Fourth Proportional to 1,231.82, 1,699.71 and 734.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,231.82 : 1,699.71 = 734.28 : x
2. Step 2: Convert to fraction form
   1,231.82/1,699.71 = 734.28/x
3. Step 3: Cross multiply
   1,231.82x = 1,699.71 × 734.28
4. Step 4: Simplify right side
   1,231.82x = 1,248,063.49
5. Step 5: Solve for x
   x = 1,248,063.49/1,231.82
6. Step 6: Final answer
   x = 1,013.18