Finding the Fourth Proportional to 2,054.15, 3,081.52 and 667.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,054.15 : 3,081.52 = 667.16 : x
2. Step 2: Convert to fraction form
   2,054.15/3,081.52 = 667.16/x
3. Step 3: Cross multiply
   2,054.15x = 3,081.52 × 667.16
4. Step 4: Simplify right side
   2,054.15x = 2,055,866.88
5. Step 5: Solve for x
   x = 2,055,866.88/2,054.15
6. Step 6: Final answer
   x = 1,000.84