Finding the Fourth Proportional to 2,639,039.16, 3,958,296.24 and 1,219,074.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,639,039.16 : 3,958,296.24 = 1,219,074.72 : x
2. Step 2: Convert to fraction form
   2,639,039.16/3,958,296.24 = 1,219,074.72/x
3. Step 3: Cross multiply
   2,639,039.16x = 3,958,296.24 × 1,219,074.72
4. Step 4: Simplify right side
   2,639,039.16x = 4,825,458,880,455.05
5. Step 5: Solve for x
   x = 4,825,458,880,455.05/2,639,039.16
6. Step 6: Final answer
   x = 1,828,490.82