Finding the Fourth Proportional to 1,231,851.83, 1,847,782.04 and 378,917.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,231,851.83 : 1,847,782.04 = 378,917.69 : x
2. Step 2: Convert to fraction form
   1,231,851.83/1,847,782.04 = 378,917.69/x
3. Step 3: Cross multiply
   1,231,851.83x = 1,847,782.04 × 378,917.69
4. Step 4: Simplify right side
   1,231,851.83x = 700,157,304,945.15
5. Step 5: Solve for x
   x = 700,157,304,945.15/1,231,851.83
6. Step 6: Final answer
   x = 568,377.86