Finding the Fourth Proportional to 1,019,162.76, 1,528,928.01 and 419,796.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,019,162.76 : 1,528,928.01 = 419,796.78 : x
2. Step 2: Convert to fraction form
   1,019,162.76/1,528,928.01 = 419,796.78/x
3. Step 3: Cross multiply
   1,019,162.76x = 1,528,928.01 × 419,796.78
4. Step 4: Simplify right side
   1,019,162.76x = 641,839,055,449.81
5. Step 5: Solve for x
   x = 641,839,055,449.81/1,019,162.76
6. Step 6: Final answer
   x = 629,770.91