Finding the Fourth Proportional to 1,256.72, 1,733.52 and 926

Step by Step Solution

1. Step 1: Write the proportion equation
   1,256.72 : 1,733.52 = 926 : x
2. Step 2: Convert to fraction form
   1,256.72/1,733.52 = 926/x
3. Step 3: Cross multiply
   1,256.72x = 1,733.52 × 926
4. Step 4: Simplify right side
   1,256.72x = 1,605,239.52
5. Step 5: Solve for x
   x = 1,605,239.52/1,256.72
6. Step 6: Final answer
   x = 1,277.32