Finding the Fourth Proportional to 3,643.31, 5,027.57 and 2,150.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,643.31 : 5,027.57 = 2,150.89 : x
2. Step 2: Convert to fraction form
   3,643.31/5,027.57 = 2,150.89/x
3. Step 3: Cross multiply
   3,643.31x = 5,027.57 × 2,150.89
4. Step 4: Simplify right side
   3,643.31x = 10,813,734.78
5. Step 5: Solve for x
   x = 10,813,734.78/3,643.31
6. Step 6: Final answer
   x = 2,968.11