Finding the Fourth Proportional to 1,231,892.58, 1,847,843.42 and 378,958.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,231,892.58 : 1,847,843.42 = 378,958.32 : x
2. Step 2: Convert to fraction form
   1,231,892.58/1,847,843.42 = 378,958.32/x
3. Step 3: Cross multiply
   1,231,892.58x = 1,847,843.42 × 378,958.32
4. Step 4: Simplify right side
   1,231,892.58x = 700,255,638,066.25
5. Step 5: Solve for x
   x = 700,255,638,066.25/1,231,892.58
6. Step 6: Final answer
   x = 568,438.88