Finding the Fourth Proportional to 1,274.37, 1,758.49 and 714.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,274.37 : 1,758.49 = 714.73 : x
2. Step 2: Convert to fraction form
   1,274.37/1,758.49 = 714.73/x
3. Step 3: Cross multiply
   1,274.37x = 1,758.49 × 714.73
4. Step 4: Simplify right side
   1,274.37x = 1,256,838.55
5. Step 5: Solve for x
   x = 1,256,838.55/1,274.37
6. Step 6: Final answer
   x = 986.24