Finding the Fourth Proportional to 1,610,632.72, 2,222,616.56 and 885,475.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,610,632.72 : 2,222,616.56 = 885,475.20 : x
2. Step 2: Convert to fraction form
   1,610,632.72/2,222,616.56 = 885,475.20/x
3. Step 3: Cross multiply
   1,610,632.72x = 2,222,616.56 × 885,475.20
4. Step 4: Simplify right side
   1,610,632.72x = 1,968,071,842,989.31
5. Step 5: Solve for x
   x = 1,968,071,842,989.31/1,610,632.72
6. Step 6: Final answer
   x = 1,221,924.66