Finding the Fourth Proportional to 779,719.50, 1,076,016.15 and 422,023.50

Step by Step Solution

1. Step 1: Write the proportion equation
   779,719.50 : 1,076,016.15 = 422,023.50 : x
2. Step 2: Convert to fraction form
   779,719.50/1,076,016.15 = 422,023.50/x
3. Step 3: Cross multiply
   779,719.50x = 1,076,016.15 × 422,023.50
4. Step 4: Simplify right side
   779,719.50x = 454,104,101,679.53
5. Step 5: Solve for x
   x = 454,104,101,679.53/779,719.50
6. Step 6: Final answer
   x = 582,394.18