Finding the Fourth Proportional to 2,183,092.96, 3,012,761.28 and 1,216,222.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,183,092.96 : 3,012,761.28 = 1,216,222.72 : x
2. Step 2: Convert to fraction form
   2,183,092.96/3,012,761.28 = 1,216,222.72/x
3. Step 3: Cross multiply
   2,183,092.96x = 3,012,761.28 × 1,216,222.72
4. Step 4: Simplify right side
   2,183,092.96x = 3,664,188,718,672.28
5. Step 5: Solve for x
   x = 3,664,188,718,672.28/2,183,092.96
6. Step 6: Final answer
   x = 1,678,439.16