Finding the Fourth Proportional to 767,061.50, 1,058,551.94 and 422,909.57

Step by Step Solution

1. Step 1: Write the proportion equation
   767,061.50 : 1,058,551.94 = 422,909.57 : x
2. Step 2: Convert to fraction form
   767,061.50/1,058,551.94 = 422,909.57/x
3. Step 3: Cross multiply
   767,061.50x = 1,058,551.94 × 422,909.57
4. Step 4: Simplify right side
   767,061.50x = 447,671,749,471.72
5. Step 5: Solve for x
   x = 447,671,749,471.72/767,061.50
6. Step 6: Final answer
   x = 583,619.11