Finding the Fourth Proportional to 826,478.33, 1,140,501.71 and 458,978.80

Step by Step Solution

1. Step 1: Write the proportion equation
   826,478.33 : 1,140,501.71 = 458,978.80 : x
2. Step 2: Convert to fraction form
   826,478.33/1,140,501.71 = 458,978.80/x
3. Step 3: Cross multiply
   826,478.33x = 1,140,501.71 × 458,978.80
4. Step 4: Simplify right side
   826,478.33x = 523,466,107,957.56
5. Step 5: Solve for x
   x = 523,466,107,957.56/826,478.33
6. Step 6: Final answer
   x = 633,369.43