Finding the Fourth Proportional to 940.80, 1,298.56 and 734.72

Step by Step Solution

1. Step 1: Write the proportion equation
   940.80 : 1,298.56 = 734.72 : x
2. Step 2: Convert to fraction form
   940.80/1,298.56 = 734.72/x
3. Step 3: Cross multiply
   940.80x = 1,298.56 × 734.72
4. Step 4: Simplify right side
   940.80x = 954,078.00
5. Step 5: Solve for x
   x = 954,078.00/940.80
6. Step 6: Final answer
   x = 1,014.11