Finding the Fourth Proportional to 647,730.72, 893,869.98 and 361,269.36

Step by Step Solution

1. Step 1: Write the proportion equation
   647,730.72 : 893,869.98 = 361,269.36 : x
2. Step 2: Convert to fraction form
   647,730.72/893,869.98 = 361,269.36/x
3. Step 3: Cross multiply
   647,730.72x = 893,869.98 × 361,269.36
4. Step 4: Simplify right side
   647,730.72x = 322,927,835,597.81
5. Step 5: Solve for x
   x = 322,927,835,597.81/647,730.72
6. Step 6: Final answer
   x = 498,552.60