Finding the Fourth Proportional to 1,868.25, 2,802.82 and 698.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,868.25 : 2,802.82 = 698.28 : x
2. Step 2: Convert to fraction form
   1,868.25/2,802.82 = 698.28/x
3. Step 3: Cross multiply
   1,868.25x = 2,802.82 × 698.28
4. Step 4: Simplify right side
   1,868.25x = 1,957,153.15
5. Step 5: Solve for x
   x = 1,957,153.15/1,868.25
6. Step 6: Final answer
   x = 1,047.59