Finding the Fourth Proportional to 2,684.80, 4,025.58 and 1,222.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,684.80 : 4,025.58 = 1,222.48 : x
2. Step 2: Convert to fraction form
   2,684.80/4,025.58 = 1,222.48/x
3. Step 3: Cross multiply
   2,684.80x = 4,025.58 × 1,222.48
4. Step 4: Simplify right side
   2,684.80x = 4,921,191.04
5. Step 5: Solve for x
   x = 4,921,191.04/2,684.80
6. Step 6: Final answer
   x = 1,832.98