Finding the Fourth Proportional to 791,222.72, 1,091,768.16 and 451,644.80

Step by Step Solution

1. Step 1: Write the proportion equation
   791,222.72 : 1,091,768.16 = 451,644.80 : x
2. Step 2: Convert to fraction form
   791,222.72/1,091,768.16 = 451,644.80/x
3. Step 3: Cross multiply
   791,222.72x = 1,091,768.16 × 451,644.80
4. Step 4: Simplify right side
   791,222.72x = 493,091,412,269.57
5. Step 5: Solve for x
   x = 493,091,412,269.57/791,222.72
6. Step 6: Final answer
   x = 623,201.79