Finding the Fourth Proportional to 2,254,581.51, 3,111,239.09 and 1,222,067.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,254,581.51 : 3,111,239.09 = 1,222,067.12 : x
2. Step 2: Convert to fraction form
   2,254,581.51/3,111,239.09 = 1,222,067.12/x
3. Step 3: Cross multiply
   2,254,581.51x = 3,111,239.09 × 1,222,067.12
4. Step 4: Simplify right side
   2,254,581.51x = 3,802,143,010,389.15
5. Step 5: Solve for x
   x = 3,802,143,010,389.15/2,254,581.51
6. Step 6: Final answer
   x = 1,686,407.43