Finding the Fourth Proportional to 3,993.88, 5,510.76 and 2,225.16

Step by Step Solution

1. Step 1: Write the proportion equation
   3,993.88 : 5,510.76 = 2,225.16 : x
2. Step 2: Convert to fraction form
   3,993.88/5,510.76 = 2,225.16/x
3. Step 3: Cross multiply
   3,993.88x = 5,510.76 × 2,225.16
4. Step 4: Simplify right side
   3,993.88x = 12,262,322.72
5. Step 5: Solve for x
   x = 12,262,322.72/3,993.88
6. Step 6: Final answer
   x = 3,070.28