Finding the Fourth Proportional to 2,072.98, 2,850.91 and 1,648.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,072.98 : 2,850.91 = 1,648.34 : x
2. Step 2: Convert to fraction form
   2,072.98/2,850.91 = 1,648.34/x
3. Step 3: Cross multiply
   2,072.98x = 2,850.91 × 1,648.34
4. Step 4: Simplify right side
   2,072.98x = 4,699,261.30
5. Step 5: Solve for x
   x = 4,699,261.30/2,072.98
6. Step 6: Final answer
   x = 2,266.91