Finding the Fourth Proportional to 3,635.00, 5,018.16 and 2,143.40

Step by Step Solution

1. Step 1: Write the proportion equation
   3,635.00 : 5,018.16 = 2,143.40 : x
2. Step 2: Convert to fraction form
   3,635.00/5,018.16 = 2,143.40/x
3. Step 3: Cross multiply
   3,635.00x = 5,018.16 × 2,143.40
4. Step 4: Simplify right side
   3,635.00x = 10,755,899.05
5. Step 5: Solve for x
   x = 10,755,899.05/3,635.00
6. Step 6: Final answer
   x = 2,958.99