Finding the Fourth Proportional to 925,565.82, 1,388,522.49 and 420,162.27

Step by Step Solution

1. Step 1: Write the proportion equation
   925,565.82 : 1,388,522.49 = 420,162.27 : x
2. Step 2: Convert to fraction form
   925,565.82/1,388,522.49 = 420,162.27/x
3. Step 3: Cross multiply
   925,565.82x = 1,388,522.49 × 420,162.27
4. Step 4: Simplify right side
   925,565.82x = 583,404,761,344.45
5. Step 5: Solve for x
   x = 583,404,761,344.45/925,565.82
6. Step 6: Final answer
   x = 630,322.28