Finding the Fourth Proportional to 2,179,615.68, 3,007,884.42 and 1,212,786.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,179,615.68 : 3,007,884.42 = 1,212,786.72 : x
2. Step 2: Convert to fraction form
   2,179,615.68/3,007,884.42 = 1,212,786.72/x
3. Step 3: Cross multiply
   2,179,615.68x = 3,007,884.42 × 1,212,786.72
4. Step 4: Simplify right side
   2,179,615.68x = 3,647,922,279,870.90
5. Step 5: Solve for x
   x = 3,647,922,279,870.90/2,179,615.68
6. Step 6: Final answer
   x = 1,673,653.90