Finding the Fourth Proportional to 2,015.42, 3,023.31 and 698.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,015.42 : 3,023.31 = 698.96 : x
2. Step 2: Convert to fraction form
   2,015.42/3,023.31 = 698.96/x
3. Step 3: Cross multiply
   2,015.42x = 3,023.31 × 698.96
4. Step 4: Simplify right side
   2,015.42x = 2,113,180.32
5. Step 5: Solve for x
   x = 2,113,180.32/2,015.42
6. Step 6: Final answer
   x = 1,048.51