Finding the Fourth Proportional to 3,618.72, 4,993.89 and 2,126.67

Step by Step Solution

1. Step 1: Write the proportion equation
   3,618.72 : 4,993.89 = 2,126.67 : x
2. Step 2: Convert to fraction form
   3,618.72/4,993.89 = 2,126.67/x
3. Step 3: Cross multiply
   3,618.72x = 4,993.89 × 2,126.67
4. Step 4: Simplify right side
   3,618.72x = 10,620,356.05
5. Step 5: Solve for x
   x = 10,620,356.05/3,618.72
6. Step 6: Final answer
   x = 2,934.84