Finding the Fourth Proportional to 1,108.08, 1,662.42 and 491.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,108.08 : 1,662.42 = 491.94 : x
2. Step 2: Convert to fraction form
   1,108.08/1,662.42 = 491.94/x
3. Step 3: Cross multiply
   1,108.08x = 1,662.42 × 491.94
4. Step 4: Simplify right side
   1,108.08x = 817,810.89
5. Step 5: Solve for x
   x = 817,810.89/1,108.08
6. Step 6: Final answer
   x = 738.04