Finding the Fourth Proportional to 3,540.65, 5,312.18 and 2,222.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,540.65 : 5,312.18 = 2,222.82 : x
2. Step 2: Convert to fraction form
   3,540.65/5,312.18 = 2,222.82/x
3. Step 3: Cross multiply
   3,540.65x = 5,312.18 × 2,222.82
4. Step 4: Simplify right side
   3,540.65x = 11,808,019.95
5. Step 5: Solve for x
   x = 11,808,019.95/3,540.65
6. Step 6: Final answer
   x = 3,334.99