Finding the Fourth Proportional to 780,264, 1,076,764.32 and 422,568

Step by Step Solution

1. Step 1: Write the proportion equation
   780,264 : 1,076,764.32 = 422,568 : x
2. Step 2: Convert to fraction form
   780,264/1,076,764.32 = 422,568/x
3. Step 3: Cross multiply
   780,264x = 1,076,764.32 × 422,568
4. Step 4: Simplify right side
   780,264x = 455,006,145,173.76
5. Step 5: Solve for x
   x = 455,006,145,173.76/780,264
6. Step 6: Final answer
   x = 583,143.84