Finding the Fourth Proportional to 1,079,073.99, 1,617,495.60 and 404,679.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,079,073.99 : 1,617,495.60 = 404,679.72 : x
2. Step 2: Convert to fraction form
   1,079,073.99/1,617,495.60 = 404,679.72/x
3. Step 3: Cross multiply
   1,079,073.99x = 1,617,495.60 × 404,679.72
4. Step 4: Simplify right side
   1,079,073.99x = 654,567,666,509.23
5. Step 5: Solve for x
   x = 654,567,666,509.23/1,079,073.99
6. Step 6: Final answer
   x = 606,601.28