Finding the Fourth Proportional to 1,648.62, 2,472.04 and 675.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,648.62 : 2,472.04 = 675.42 : x
2. Step 2: Convert to fraction form
   1,648.62/2,472.04 = 675.42/x
3. Step 3: Cross multiply
   1,648.62x = 2,472.04 × 675.42
4. Step 4: Simplify right side
   1,648.62x = 1,669,665.26
5. Step 5: Solve for x
   x = 1,669,665.26/1,648.62
6. Step 6: Final answer
   x = 1,012.77