Finding the Fourth Proportional to 1,109.01, 1,663.17 and 493.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,109.01 : 1,663.17 = 493.27 : x
2. Step 2: Convert to fraction form
   1,109.01/1,663.17 = 493.27/x
3. Step 3: Cross multiply
   1,109.01x = 1,663.17 × 493.27
4. Step 4: Simplify right side
   1,109.01x = 820,385.86
5. Step 5: Solve for x
   x = 820,385.86/1,109.01
6. Step 6: Final answer
   x = 739.74