Finding the Fourth Proportional to 1,036.82, 1,431.53 and 743.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,036.82 : 1,431.53 = 743.60 : x
2. Step 2: Convert to fraction form
   1,036.82/1,431.53 = 743.60/x
3. Step 3: Cross multiply
   1,036.82x = 1,431.53 × 743.60
4. Step 4: Simplify right side
   1,036.82x = 1,064,474.83
5. Step 5: Solve for x
   x = 1,064,474.83/1,036.82
6. Step 6: Final answer
   x = 1,026.68