Finding the Fourth Proportional to 2,054.22, 3,081.05 and 667.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,054.22 : 3,081.05 = 667.42 : x
2. Step 2: Convert to fraction form
   2,054.22/3,081.05 = 667.42/x
3. Step 3: Cross multiply
   2,054.22x = 3,081.05 × 667.42
4. Step 4: Simplify right side
   2,054.22x = 2,056,354.39
5. Step 5: Solve for x
   x = 2,056,354.39/2,054.22
6. Step 6: Final answer
   x = 1,001.04