Finding the Fourth Proportional to 1,222,062.72, 1,832,850.24 and 412,368

Step by Step Solution

1. Step 1: Write the proportion equation
   1,222,062.72 : 1,832,850.24 = 412,368 : x
2. Step 2: Convert to fraction form
   1,222,062.72/1,832,850.24 = 412,368/x
3. Step 3: Cross multiply
   1,222,062.72x = 1,832,850.24 × 412,368
4. Step 4: Simplify right side
   1,222,062.72x = 755,808,787,768.32
5. Step 5: Solve for x
   x = 755,808,787,768.32/1,222,062.72
6. Step 6: Final answer
   x = 618,469.72