Finding the Fourth Proportional to 1,603,573.03, 2,405,339.47 and 389,159.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,603,573.03 : 2,405,339.47 = 389,159.72 : x
2. Step 2: Convert to fraction form
   1,603,573.03/2,405,339.47 = 389,159.72/x
3. Step 3: Cross multiply
   1,603,573.03x = 2,405,339.47 × 389,159.72
4. Step 4: Simplify right side
   1,603,573.03x = 936,061,234,650.15
5. Step 5: Solve for x
   x = 936,061,234,650.15/1,603,573.03
6. Step 6: Final answer
   x = 583,734.71