Finding the Fourth Proportional to 2,060.46, 3,090.72 and 673.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,060.46 : 3,090.72 = 673.78 : x
2. Step 2: Convert to fraction form
   2,060.46/3,090.72 = 673.78/x
3. Step 3: Cross multiply
   2,060.46x = 3,090.72 × 673.78
4. Step 4: Simplify right side
   2,060.46x = 2,082,465.32
5. Step 5: Solve for x
   x = 2,082,465.32/2,060.46
6. Step 6: Final answer
   x = 1,010.68