Finding the Fourth Proportional to 3,664.82, 5,057.15 and 2,071.60

Step by Step Solution

1. Step 1: Write the proportion equation
   3,664.82 : 5,057.15 = 2,071.60 : x
2. Step 2: Convert to fraction form
   3,664.82/5,057.15 = 2,071.60/x
3. Step 3: Cross multiply
   3,664.82x = 5,057.15 × 2,071.60
4. Step 4: Simplify right side
   3,664.82x = 10,476,368.94
5. Step 5: Solve for x
   x = 10,476,368.94/3,664.82
6. Step 6: Final answer
   x = 2,858.63