Finding the Fourth Proportional to 2,457,422.31, 3,687,793.25 and 859,999.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,457,422.31 : 3,687,793.25 = 859,999.35 : x
2. Step 2: Convert to fraction form
   2,457,422.31/3,687,793.25 = 859,999.35/x
3. Step 3: Cross multiply
   2,457,422.31x = 3,687,793.25 × 859,999.35
4. Step 4: Simplify right side
   2,457,422.31x = 3,171,499,793,634.39
5. Step 5: Solve for x
   x = 3,171,499,793,634.39/2,457,422.31
6. Step 6: Final answer
   x = 1,290,579.88