Finding the Fourth Proportional to 1,896.36, 2,615.69 and 1,647.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,896.36 : 2,615.69 = 1,647.25 : x
2. Step 2: Convert to fraction form
   1,896.36/2,615.69 = 1,647.25/x
3. Step 3: Cross multiply
   1,896.36x = 2,615.69 × 1,647.25
4. Step 4: Simplify right side
   1,896.36x = 4,308,682.27
5. Step 5: Solve for x
   x = 4,308,682.27/1,896.36
6. Step 6: Final answer
   x = 2,272.09