Finding the Fourth Proportional to 3,665.33, 5,057.82 and 2,152.65

Step by Step Solution

1. Step 1: Write the proportion equation
   3,665.33 : 5,057.82 = 2,152.65 : x
2. Step 2: Convert to fraction form
   3,665.33/5,057.82 = 2,152.65/x
3. Step 3: Cross multiply
   3,665.33x = 5,057.82 × 2,152.65
4. Step 4: Simplify right side
   3,665.33x = 10,887,716.22
5. Step 5: Solve for x
   x = 10,887,716.22/3,665.33
6. Step 6: Final answer
   x = 2,970.46