Finding the Fourth Proportional to 3,643.16, 5,025.85 and 2,150.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,643.16 : 5,025.85 = 2,150.06 : x
2. Step 2: Convert to fraction form
   3,643.16/5,025.85 = 2,150.06/x
3. Step 3: Cross multiply
   3,643.16x = 5,025.85 × 2,150.06
4. Step 4: Simplify right side
   3,643.16x = 10,805,848.55
5. Step 5: Solve for x
   x = 10,805,848.55/3,643.16
6. Step 6: Final answer
   x = 2,966.07