Finding the Fourth Proportional to 488,342, 735,840.56 and 401,540

Step by Step Solution

1. Step 1: Write the proportion equation
   488,342 : 735,840.56 = 401,540 : x
2. Step 2: Convert to fraction form
   488,342/735,840.56 = 401,540/x
3. Step 3: Cross multiply
   488,342x = 735,840.56 × 401,540
4. Step 4: Simplify right side
   488,342x = 295,469,418,462.40
5. Step 5: Solve for x
   x = 295,469,418,462.40/488,342
6. Step 6: Final answer
   x = 605,046.09