Finding the Fourth Proportional to 2,060.25, 3,091.59 and 890.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,060.25 : 3,091.59 = 890.22 : x
2. Step 2: Convert to fraction form
   2,060.25/3,091.59 = 890.22/x
3. Step 3: Cross multiply
   2,060.25x = 3,091.59 × 890.22
4. Step 4: Simplify right side
   2,060.25x = 2,752,195.25
5. Step 5: Solve for x
   x = 2,752,195.25/2,060.25
6. Step 6: Final answer
   x = 1,335.85