Finding the Fourth Proportional to 728,093.38, 1,004,773.50 and 405,823.94

Step by Step Solution

1. Step 1: Write the proportion equation
   728,093.38 : 1,004,773.50 = 405,823.94 : x
2. Step 2: Convert to fraction form
   728,093.38/1,004,773.50 = 405,823.94/x
3. Step 3: Cross multiply
   728,093.38x = 1,004,773.50 × 405,823.94
4. Step 4: Simplify right side
   728,093.38x = 407,761,140,577.59
5. Step 5: Solve for x
   x = 407,761,140,577.59/728,093.38
6. Step 6: Final answer
   x = 560,039.62