Finding the Fourth Proportional to 501,945.67, 692,685.56 and 298,037.31

Step by Step Solution

1. Step 1: Write the proportion equation
   501,945.67 : 692,685.56 = 298,037.31 : x
2. Step 2: Convert to fraction form
   501,945.67/692,685.56 = 298,037.31/x
3. Step 3: Cross multiply
   501,945.67x = 692,685.56 × 298,037.31
4. Step 4: Simplify right side
   501,945.67x = 206,446,140,978.24
5. Step 5: Solve for x
   x = 206,446,140,978.24/501,945.67
6. Step 6: Final answer
   x = 411,291.81