Finding the Fourth Proportional to 1,008.36, 1,510.26 and 698.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,008.36 : 1,510.26 = 698.82 : x
2. Step 2: Convert to fraction form
   1,008.36/1,510.26 = 698.82/x
3. Step 3: Cross multiply
   1,008.36x = 1,510.26 × 698.82
4. Step 4: Simplify right side
   1,008.36x = 1,055,399.89
5. Step 5: Solve for x
   x = 1,055,399.89/1,008.36
6. Step 6: Final answer
   x = 1,046.65