Finding the Fourth Proportional to 1,078,669.51, 1,617,583.67 and 404,383.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,078,669.51 : 1,617,583.67 = 404,383.29 : x
2. Step 2: Convert to fraction form
   1,078,669.51/1,617,583.67 = 404,383.29/x
3. Step 3: Cross multiply
   1,078,669.51x = 1,617,583.67 × 404,383.29
4. Step 4: Simplify right side
   1,078,669.51x = 654,123,799,753.46
5. Step 5: Solve for x
   x = 654,123,799,753.46/1,078,669.51
6. Step 6: Final answer
   x = 606,417.25