Finding the Fourth Proportional to 1,097.94, 1,647.02 and 404.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,097.94 : 1,647.02 = 404.79 : x
2. Step 2: Convert to fraction form
   1,097.94/1,647.02 = 404.79/x
3. Step 3: Cross multiply
   1,097.94x = 1,647.02 × 404.79
4. Step 4: Simplify right side
   1,097.94x = 666,697.23
5. Step 5: Solve for x
   x = 666,697.23/1,097.94
6. Step 6: Final answer
   x = 607.23