Finding the Fourth Proportional to 1,396,159.31, 2,093,039.52 and 485,223.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,396,159.31 : 2,093,039.52 = 485,223.42 : x
2. Step 2: Convert to fraction form
   1,396,159.31/2,093,039.52 = 485,223.42/x
3. Step 3: Cross multiply
   1,396,159.31x = 2,093,039.52 × 485,223.42
4. Step 4: Simplify right side
   1,396,159.31x = 1,015,591,794,089.56
5. Step 5: Solve for x
   x = 1,015,591,794,089.56/1,396,159.31
6. Step 6: Final answer
   x = 727,418.28