Finding the Fourth Proportional to 2,054.99, 3,082.78 and 667.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,054.99 : 3,082.78 = 667.88 : x
2. Step 2: Convert to fraction form
   2,054.99/3,082.78 = 667.88/x
3. Step 3: Cross multiply
   2,054.99x = 3,082.78 × 667.88
4. Step 4: Simplify right side
   2,054.99x = 2,058,924.09
5. Step 5: Solve for x
   x = 2,058,924.09/2,054.99
6. Step 6: Final answer
   x = 1,001.91