Finding the Fourth Proportional to 892,105.36, 1,231,123.78 and 504,920.76

Step by Step Solution

1. Step 1: Write the proportion equation
   892,105.36 : 1,231,123.78 = 504,920.76 : x
2. Step 2: Convert to fraction form
   892,105.36/1,231,123.78 = 504,920.76/x
3. Step 3: Cross multiply
   892,105.36x = 1,231,123.78 × 504,920.76
4. Step 4: Simplify right side
   892,105.36x = 621,619,954,651.67
5. Step 5: Solve for x
   x = 621,619,954,651.67/892,105.36
6. Step 6: Final answer
   x = 696,801.05