Finding the Fourth Proportional to 1,475.82, 2,213.72 and 449.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,475.82 : 2,213.72 = 449.82 : x
2. Step 2: Convert to fraction form
   1,475.82/2,213.72 = 449.82/x
3. Step 3: Cross multiply
   1,475.82x = 2,213.72 × 449.82
4. Step 4: Simplify right side
   1,475.82x = 995,773.28
5. Step 5: Solve for x
   x = 995,773.28/1,475.82
6. Step 6: Final answer
   x = 674.73