Finding the Fourth Proportional to 1,364.31, 1,882.80 and 743.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,364.31 : 1,882.80 = 743.31 : x
2. Step 2: Convert to fraction form
   1,364.31/1,882.80 = 743.31/x
3. Step 3: Cross multiply
   1,364.31x = 1,882.80 × 743.31
4. Step 4: Simplify right side
   1,364.31x = 1,399,504.07
5. Step 5: Solve for x
   x = 1,399,504.07/1,364.31
6. Step 6: Final answer
   x = 1,025.80