Finding the Fourth Proportional to 2,342.40, 3,513.78 and 698.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,342.40 : 3,513.78 = 698.82 : x
2. Step 2: Convert to fraction form
   2,342.40/3,513.78 = 698.82/x
3. Step 3: Cross multiply
   2,342.40x = 3,513.78 × 698.82
4. Step 4: Simplify right side
   2,342.40x = 2,455,499.74
5. Step 5: Solve for x
   x = 2,455,499.74/2,342.40
6. Step 6: Final answer
   x = 1,048.28