Finding the Fourth Proportional to 1,369.43, 1,889.81 and 748.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,369.43 : 1,889.81 = 748.43 : x
2. Step 2: Convert to fraction form
   1,369.43/1,889.81 = 748.43/x
3. Step 3: Cross multiply
   1,369.43x = 1,889.81 × 748.43
4. Step 4: Simplify right side
   1,369.43x = 1,414,377.31
5. Step 5: Solve for x
   x = 1,414,377.31/1,369.43
6. Step 6: Final answer
   x = 1,032.83