Finding the Fourth Proportional to 791,222.41, 1,091,887.38 and 428,648.79

Step by Step Solution

1. Step 1: Write the proportion equation
   791,222.41 : 1,091,887.38 = 428,648.79 : x
2. Step 2: Convert to fraction form
   791,222.41/1,091,887.38 = 428,648.79/x
3. Step 3: Cross multiply
   791,222.41x = 1,091,887.38 × 428,648.79
4. Step 4: Simplify right side
   791,222.41x = 468,036,204,253.27
5. Step 5: Solve for x
   x = 468,036,204,253.27/791,222.41
6. Step 6: Final answer
   x = 591,535.58