Finding the Fourth Proportional to 4,815.69, 7,222.69 and 1,698

Step by Step Solution

1. Step 1: Write the proportion equation
   4,815.69 : 7,222.69 = 1,698 : x
2. Step 2: Convert to fraction form
   4,815.69/7,222.69 = 1,698/x
3. Step 3: Cross multiply
   4,815.69x = 7,222.69 × 1,698
4. Step 4: Simplify right side
   4,815.69x = 12,264,127.62
5. Step 5: Solve for x
   x = 12,264,127.62/4,815.69
6. Step 6: Final answer
   x = 2,546.70