Finding the Fourth Proportional to 2,840.82, 3,918.83 and 1,955.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,840.82 : 3,918.83 = 1,955.09 : x
2. Step 2: Convert to fraction form
   2,840.82/3,918.83 = 1,955.09/x
3. Step 3: Cross multiply
   2,840.82x = 3,918.83 × 1,955.09
4. Step 4: Simplify right side
   2,840.82x = 7,661,654.32
5. Step 5: Solve for x
   x = 7,661,654.32/2,840.82
6. Step 6: Final answer
   x = 2,696.99