Finding the Fourth Proportional to 2,399,563.62, 3,311,399.61 and 1,311,817.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,399,563.62 : 3,311,399.61 = 1,311,817.86 : x
2. Step 2: Convert to fraction form
   2,399,563.62/3,311,399.61 = 1,311,817.86/x
3. Step 3: Cross multiply
   2,399,563.62x = 3,311,399.61 × 1,311,817.86
4. Step 4: Simplify right side
   2,399,563.62x = 4,343,953,149,995.03
5. Step 5: Solve for x
   x = 4,343,953,149,995.03/2,399,563.62
6. Step 6: Final answer
   x = 1,810,309.64