Finding the Fourth Proportional to 1,094.72, 1,642.56 and 445.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,094.72 : 1,642.56 = 445.88 : x
2. Step 2: Convert to fraction form
   1,094.72/1,642.56 = 445.88/x
3. Step 3: Cross multiply
   1,094.72x = 1,642.56 × 445.88
4. Step 4: Simplify right side
   1,094.72x = 732,384.65
5. Step 5: Solve for x
   x = 732,384.65/1,094.72
6. Step 6: Final answer
   x = 669.02