Finding the Fourth Proportional to 1,356.79, 1,872.34 and 759.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,356.79 : 1,872.34 = 759.25 : x
2. Step 2: Convert to fraction form
   1,356.79/1,872.34 = 759.25/x
3. Step 3: Cross multiply
   1,356.79x = 1,872.34 × 759.25
4. Step 4: Simplify right side
   1,356.79x = 1,421,574.15
5. Step 5: Solve for x
   x = 1,421,574.15/1,356.79
6. Step 6: Final answer
   x = 1,047.75