Finding the Fourth Proportional to 780,055, 1,076,475.90 and 422,359

Step by Step Solution

1. Step 1: Write the proportion equation
   780,055 : 1,076,475.90 = 422,359 : x
2. Step 2: Convert to fraction form
   780,055/1,076,475.90 = 422,359/x
3. Step 3: Cross multiply
   780,055x = 1,076,475.90 × 422,359
4. Step 4: Simplify right side
   780,055x = 454,659,284,648.10
5. Step 5: Solve for x
   x = 454,659,284,648.10/780,055
6. Step 6: Final answer
   x = 582,855.42