Finding the Fourth Proportional to 2,486,701.17, 3,431,507.31 and 1,399,018.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,486,701.17 : 3,431,507.31 = 1,399,018.59 : x
2. Step 2: Convert to fraction form
   2,486,701.17/3,431,507.31 = 1,399,018.59/x
3. Step 3: Cross multiply
   2,486,701.17x = 3,431,507.31 × 1,399,018.59
4. Step 4: Simplify right side
   2,486,701.17x = 4,800,742,518,410.89
5. Step 5: Solve for x
   x = 4,800,742,518,410.89/2,486,701.17
6. Step 6: Final answer
   x = 1,930,566.72