Finding the Fourth Proportional to 1,868.88, 2,801.52 and 698.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,868.88 : 2,801.52 = 698.04 : x
2. Step 2: Convert to fraction form
   1,868.88/2,801.52 = 698.04/x
3. Step 3: Cross multiply
   1,868.88x = 2,801.52 × 698.04
4. Step 4: Simplify right side
   1,868.88x = 1,955,573.02
5. Step 5: Solve for x
   x = 1,955,573.02/1,868.88
6. Step 6: Final answer
   x = 1,046.39