Finding the Fourth Proportional to 3,643.34, 5,027.62 and 2,150.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,643.34 : 5,027.62 = 2,150.72 : x
2. Step 2: Convert to fraction form
   3,643.34/5,027.62 = 2,150.72/x
3. Step 3: Cross multiply
   3,643.34x = 5,027.62 × 2,150.72
4. Step 4: Simplify right side
   3,643.34x = 10,812,966.99
5. Step 5: Solve for x
   x = 10,812,966.99/3,643.34
6. Step 6: Final answer
   x = 2,967.87