Finding the Fourth Proportional to 806,960.72, 1,210,985.40 and 333,644.24

Step by Step Solution

1. Step 1: Write the proportion equation
   806,960.72 : 1,210,985.40 = 333,644.24 : x
2. Step 2: Convert to fraction form
   806,960.72/1,210,985.40 = 333,644.24/x
3. Step 3: Cross multiply
   806,960.72x = 1,210,985.40 × 333,644.24
4. Step 4: Simplify right side
   806,960.72x = 404,038,303,434.10
5. Step 5: Solve for x
   x = 404,038,303,434.10/806,960.72
6. Step 6: Final answer
   x = 500,691.41