Finding the Fourth Proportional to 1,256.09, 1,734.27 and 942.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,256.09 : 1,734.27 = 942.05 : x
2. Step 2: Convert to fraction form
   1,256.09/1,734.27 = 942.05/x
3. Step 3: Cross multiply
   1,256.09x = 1,734.27 × 942.05
4. Step 4: Simplify right side
   1,256.09x = 1,633,760.38
5. Step 5: Solve for x
   x = 1,633,760.38/1,256.09
6. Step 6: Final answer
   x = 1,300.68