Finding the Fourth Proportional to 2,060.86, 3,090.98 and 674.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,060.86 : 3,090.98 = 674.21 : x
2. Step 2: Convert to fraction form
   2,060.86/3,090.98 = 674.21/x
3. Step 3: Cross multiply
   2,060.86x = 3,090.98 × 674.21
4. Step 4: Simplify right side
   2,060.86x = 2,083,958.53
5. Step 5: Solve for x
   x = 2,083,958.53/2,060.86
6. Step 6: Final answer
   x = 1,011.21