Finding the Fourth Proportional to 3,085,778.37, 4,629,406.56 and 1,287,661.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,085,778.37 : 4,629,406.56 = 1,287,661.59 : x
2. Step 2: Convert to fraction form
   3,085,778.37/4,629,406.56 = 1,287,661.59/x
3. Step 3: Cross multiply
   3,085,778.37x = 4,629,406.56 × 1,287,661.59
4. Step 4: Simplify right side
   3,085,778.37x = 5,961,109,011,806.03
5. Step 5: Solve for x
   x = 5,961,109,011,806.03/3,085,778.37
6. Step 6: Final answer
   x = 1,931,800.76