Finding the Fourth Proportional to 2,031, 3,046.41 and 921.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,031 : 3,046.41 = 921.42 : x
2. Step 2: Convert to fraction form
   2,031/3,046.41 = 921.42/x
3. Step 3: Cross multiply
   2,031x = 3,046.41 × 921.42
4. Step 4: Simplify right side
   2,031x = 2,807,023.10
5. Step 5: Solve for x
   x = 2,807,023.10/2,031
6. Step 6: Final answer
   x = 1,382.09