Finding the Fourth Proportional to 741.67, 1,023.54 and 479.69

Step by Step Solution

1. Step 1: Write the proportion equation
   741.67 : 1,023.54 = 479.69 : x
2. Step 2: Convert to fraction form
   741.67/1,023.54 = 479.69/x
3. Step 3: Cross multiply
   741.67x = 1,023.54 × 479.69
4. Step 4: Simplify right side
   741.67x = 490,978.82
5. Step 5: Solve for x
   x = 490,978.82/741.67
6. Step 6: Final answer
   x = 661.99