Finding the Fourth Proportional to 1,109.68, 1,662.69 and 492.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,109.68 : 1,662.69 = 492.46 : x
2. Step 2: Convert to fraction form
   1,109.68/1,662.69 = 492.46/x
3. Step 3: Cross multiply
   1,109.68x = 1,662.69 × 492.46
4. Step 4: Simplify right side
   1,109.68x = 818,808.32
5. Step 5: Solve for x
   x = 818,808.32/1,109.68
6. Step 6: Final answer
   x = 737.88