Finding the Fourth Proportional to 1,256.18, 1,733.31 and 758.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,256.18 : 1,733.31 = 758.79 : x
2. Step 2: Convert to fraction form
   1,256.18/1,733.31 = 758.79/x
3. Step 3: Cross multiply
   1,256.18x = 1,733.31 × 758.79
4. Step 4: Simplify right side
   1,256.18x = 1,315,218.29
5. Step 5: Solve for x
   x = 1,315,218.29/1,256.18
6. Step 6: Final answer
   x = 1,047.00