Finding the Fourth Proportional to 998.27, 1,487.37 and 942.38

Step by Step Solution

1. Step 1: Write the proportion equation
   998.27 : 1,487.37 = 942.38 : x
2. Step 2: Convert to fraction form
   998.27/1,487.37 = 942.38/x
3. Step 3: Cross multiply
   998.27x = 1,487.37 × 942.38
4. Step 4: Simplify right side
   998.27x = 1,401,667.74
5. Step 5: Solve for x
   x = 1,401,667.74/998.27
6. Step 6: Final answer
   x = 1,404.10