Finding the Fourth Proportional to 1,603,927.57, 2,405,870.58 and 389,514.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,603,927.57 : 2,405,870.58 = 389,514.15 : x
2. Step 2: Convert to fraction form
   1,603,927.57/2,405,870.58 = 389,514.15/x
3. Step 3: Cross multiply
   1,603,927.57x = 2,405,870.58 × 389,514.15
4. Step 4: Simplify right side
   1,603,927.57x = 937,120,633,978.71
5. Step 5: Solve for x
   x = 937,120,633,978.71/1,603,927.57
6. Step 6: Final answer
   x = 584,266.18