Finding the Fourth Proportional to 1,648.98, 2,473.20 and 674.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,648.98 : 2,473.20 = 674.82 : x
2. Step 2: Convert to fraction form
   1,648.98/2,473.20 = 674.82/x
3. Step 3: Cross multiply
   1,648.98x = 2,473.20 × 674.82
4. Step 4: Simplify right side
   1,648.98x = 1,668,964.82
5. Step 5: Solve for x
   x = 1,668,964.82/1,648.98
6. Step 6: Final answer
   x = 1,012.12