Finding the Fourth Proportional to 848,436.22, 1,272,383.83 and 279,711.33

Step by Step Solution

1. Step 1: Write the proportion equation
   848,436.22 : 1,272,383.83 = 279,711.33 : x
2. Step 2: Convert to fraction form
   848,436.22/1,272,383.83 = 279,711.33/x
3. Step 3: Cross multiply
   848,436.22x = 1,272,383.83 × 279,711.33
4. Step 4: Simplify right side
   848,436.22x = 355,900,173,359.79
5. Step 5: Solve for x
   x = 355,900,173,359.79/848,436.22
6. Step 6: Final answer
   x = 419,477.82