Finding the Fourth Proportional to 414,271.74, 620,976.69 and 281,162.82

Step by Step Solution

1. Step 1: Write the proportion equation
   414,271.74 : 620,976.69 = 281,162.82 : x
2. Step 2: Convert to fraction form
   414,271.74/620,976.69 = 281,162.82/x
3. Step 3: Cross multiply
   414,271.74x = 620,976.69 × 281,162.82
4. Step 4: Simplify right side
   414,271.74x = 174,595,557,314.67
5. Step 5: Solve for x
   x = 174,595,557,314.67/414,271.74
6. Step 6: Final answer
   x = 421,451.77