Finding the Fourth Proportional to 2,054.58, 3,081.22 and 667.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,054.58 : 3,081.22 = 667.59 : x
2. Step 2: Convert to fraction form
   2,054.58/3,081.22 = 667.59/x
3. Step 3: Cross multiply
   2,054.58x = 3,081.22 × 667.59
4. Step 4: Simplify right side
   2,054.58x = 2,056,999.52
5. Step 5: Solve for x
   x = 2,056,999.52/2,054.58
6. Step 6: Final answer
   x = 1,001.18