Finding the Fourth Proportional to 1,264.28, 1,744.69 and 704.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,264.28 : 1,744.69 = 704.74 : x
2. Step 2: Convert to fraction form
   1,264.28/1,744.69 = 704.74/x
3. Step 3: Cross multiply
   1,264.28x = 1,744.69 × 704.74
4. Step 4: Simplify right side
   1,264.28x = 1,229,552.83
5. Step 5: Solve for x
   x = 1,229,552.83/1,264.28
6. Step 6: Final answer
   x = 972.53