Finding the Fourth Proportional to 3,665.65, 5,058.60 and 2,152.92

Step by Step Solution

1. Step 1: Write the proportion equation
   3,665.65 : 5,058.60 = 2,152.92 : x
2. Step 2: Convert to fraction form
   3,665.65/5,058.60 = 2,152.92/x
3. Step 3: Cross multiply
   3,665.65x = 5,058.60 × 2,152.92
4. Step 4: Simplify right side
   3,665.65x = 10,890,735.82
5. Step 5: Solve for x
   x = 10,890,735.82/3,665.65
6. Step 6: Final answer
   x = 2,971.02