Finding the Fourth Proportional to 2,159,926.31, 3,240,414.35 and 664,018.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,159,926.31 : 3,240,414.35 = 664,018.31 : x
2. Step 2: Convert to fraction form
   2,159,926.31/3,240,414.35 = 664,018.31/x
3. Step 3: Cross multiply
   2,159,926.31x = 3,240,414.35 × 664,018.31
4. Step 4: Simplify right side
   2,159,926.31x = 2,151,694,467,657.76
5. Step 5: Solve for x
   x = 2,151,694,467,657.76/2,159,926.31
6. Step 6: Final answer
   x = 996,188.83