Finding the Fourth Proportional to 1,078,669.50, 1,617,583.71 and 404,383.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,078,669.50 : 1,617,583.71 = 404,383.26 : x
2. Step 2: Convert to fraction form
   1,078,669.50/1,617,583.71 = 404,383.26/x
3. Step 3: Cross multiply
   1,078,669.50x = 1,617,583.71 × 404,383.26
4. Step 4: Simplify right side
   1,078,669.50x = 654,123,773,972.70
5. Step 5: Solve for x
   x = 654,123,773,972.70/1,078,669.50
6. Step 6: Final answer
   x = 606,417.23