Finding the Fourth Proportional to 3,992.83, 5,510.12 and 2,224.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,992.83 : 5,510.12 = 2,224.78 : x
2. Step 2: Convert to fraction form
   3,992.83/5,510.12 = 2,224.78/x
3. Step 3: Cross multiply
   3,992.83x = 5,510.12 × 2,224.78
4. Step 4: Simplify right side
   3,992.83x = 12,258,804.77
5. Step 5: Solve for x
   x = 12,258,804.77/3,992.83
6. Step 6: Final answer
   x = 3,070.20