Finding the Fourth Proportional to 1,096,662.22, 1,644,288.60 and 457,406.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096,662.22 : 1,644,288.60 = 457,406.98 : x
2. Step 2: Convert to fraction form
   1,096,662.22/1,644,288.60 = 457,406.98/x
3. Step 3: Cross multiply
   1,096,662.22x = 1,644,288.60 × 457,406.98
4. Step 4: Simplify right side
   1,096,662.22x = 752,109,082,774.43
5. Step 5: Solve for x
   x = 752,109,082,774.43/1,096,662.22
6. Step 6: Final answer
   x = 685,816.53