Finding the Fourth Proportional to 1,264.69, 1,744.51 and 984.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,264.69 : 1,744.51 = 984.48 : x
2. Step 2: Convert to fraction form
   1,264.69/1,744.51 = 984.48/x
3. Step 3: Cross multiply
   1,264.69x = 1,744.51 × 984.48
4. Step 4: Simplify right side
   1,264.69x = 1,717,428.94
5. Step 5: Solve for x
   x = 1,717,428.94/1,264.69
6. Step 6: Final answer
   x = 1,357.99