Finding the Fourth Proportional to 3,664.61, 5,057.60 and 2,071.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,664.61 : 5,057.60 = 2,071.32 : x
2. Step 2: Convert to fraction form
   3,664.61/5,057.60 = 2,071.32/x
3. Step 3: Cross multiply
   3,664.61x = 5,057.60 × 2,071.32
4. Step 4: Simplify right side
   3,664.61x = 10,475,908.03
5. Step 5: Solve for x
   x = 10,475,908.03/3,664.61
6. Step 6: Final answer
   x = 2,858.67