Finding the Fourth Proportional to 1,610,629.72, 2,222,612.42 and 885,472.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,610,629.72 : 2,222,612.42 = 885,472.20 : x
2. Step 2: Convert to fraction form
   1,610,629.72/2,222,612.42 = 885,472.20/x
3. Step 3: Cross multiply
   1,610,629.72x = 2,222,612.42 × 885,472.20
4. Step 4: Simplify right side
   1,610,629.72x = 1,968,061,509,284.72
5. Step 5: Solve for x
   x = 1,968,061,509,284.72/1,610,629.72
6. Step 6: Final answer
   x = 1,221,920.52