Finding the Fourth Proportional to 2,172.89, 2,995.09 and 1,699.97

Step by Step Solution

1. Step 1: Write the proportion equation
   2,172.89 : 2,995.09 = 1,699.97 : x
2. Step 2: Convert to fraction form
   2,172.89/2,995.09 = 1,699.97/x
3. Step 3: Cross multiply
   2,172.89x = 2,995.09 × 1,699.97
4. Step 4: Simplify right side
   2,172.89x = 5,091,563.15
5. Step 5: Solve for x
   x = 5,091,563.15/2,172.89
6. Step 6: Final answer
   x = 2,343.22