Finding the Fourth Proportional to 2,629.96, 3,942.18 and 985.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,629.96 : 3,942.18 = 985.48 : x
2. Step 2: Convert to fraction form
   2,629.96/3,942.18 = 985.48/x
3. Step 3: Cross multiply
   2,629.96x = 3,942.18 × 985.48
4. Step 4: Simplify right side
   2,629.96x = 3,884,939.55
5. Step 5: Solve for x
   x = 3,884,939.55/2,629.96
6. Step 6: Final answer
   x = 1,477.19