Finding the Fourth Proportional to 1,043.73, 1,438.37 and 748.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,043.73 : 1,438.37 = 748.49 : x
2. Step 2: Convert to fraction form
   1,043.73/1,438.37 = 748.49/x
3. Step 3: Cross multiply
   1,043.73x = 1,438.37 × 748.49
4. Step 4: Simplify right side
   1,043.73x = 1,076,594.63
5. Step 5: Solve for x
   x = 1,076,594.63/1,043.73
6. Step 6: Final answer
   x = 1,031.49