Finding the Fourth Proportional to 1,007.67, 1,510.37 and 544.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,007.67 : 1,510.37 = 544.42 : x
2. Step 2: Convert to fraction form
   1,007.67/1,510.37 = 544.42/x
3. Step 3: Cross multiply
   1,007.67x = 1,510.37 × 544.42
4. Step 4: Simplify right side
   1,007.67x = 822,275.64
5. Step 5: Solve for x
   x = 822,275.64/1,007.67
6. Step 6: Final answer
   x = 816.02