Finding the Fourth Proportional to 1,043.73, 1,438.35 and 748.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,043.73 : 1,438.35 = 748.50 : x
2. Step 2: Convert to fraction form
   1,043.73/1,438.35 = 748.50/x
3. Step 3: Cross multiply
   1,043.73x = 1,438.35 × 748.50
4. Step 4: Simplify right side
   1,043.73x = 1,076,604.98
5. Step 5: Solve for x
   x = 1,076,604.98/1,043.73
6. Step 6: Final answer
   x = 1,031.50