Finding the Fourth Proportional to 1,055,299.42, 1,456,339.81 and 647,626.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,055,299.42 : 1,456,339.81 = 647,626.42 : x
2. Step 2: Convert to fraction form
   1,055,299.42/1,456,339.81 = 647,626.42/x
3. Step 3: Cross multiply
   1,055,299.42x = 1,456,339.81 × 647,626.42
4. Step 4: Simplify right side
   1,055,299.42x = 943,164,137,453.78
5. Step 5: Solve for x
   x = 943,164,137,453.78/1,055,299.42
6. Step 6: Final answer
   x = 893,740.79