Finding the Fourth Proportional to 2,321.98, 3,482.82 and 678.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,321.98 : 3,482.82 = 678.48 : x
2. Step 2: Convert to fraction form
   2,321.98/3,482.82 = 678.48/x
3. Step 3: Cross multiply
   2,321.98x = 3,482.82 × 678.48
4. Step 4: Simplify right side
   2,321.98x = 2,363,023.71
5. Step 5: Solve for x
   x = 2,363,023.71/2,321.98
6. Step 6: Final answer
   x = 1,017.68