Finding the Fourth Proportional to 1,940,921.27, 2,678,411.67 and 1,216,168.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,940,921.27 : 2,678,411.67 = 1,216,168.61 : x
2. Step 2: Convert to fraction form
   1,940,921.27/2,678,411.67 = 1,216,168.61/x
3. Step 3: Cross multiply
   1,940,921.27x = 2,678,411.67 × 1,216,168.61
4. Step 4: Simplify right side
   1,940,921.27x = 3,257,400,204,407.71
5. Step 5: Solve for x
   x = 3,257,400,204,407.71/1,940,921.27
6. Step 6: Final answer
   x = 1,678,275.29