Finding the Fourth Proportional to 1,222,922.72, 1,826,149.16 and 998,728.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,222,922.72 : 1,826,149.16 = 998,728.22 : x
2. Step 2: Convert to fraction form
   1,222,922.72/1,826,149.16 = 998,728.22/x
3. Step 3: Cross multiply
   1,222,922.72x = 1,826,149.16 × 998,728.22
4. Step 4: Simplify right side
   1,222,922.72x = 1,823,826,700,021.30
5. Step 5: Solve for x
   x = 1,823,826,700,021.30/1,222,922.72
6. Step 6: Final answer
   x = 1,491,367.09