Finding the Fourth Proportional to 488,716.76, 736,404.72 and 401,914.73

Step by Step Solution

1. Step 1: Write the proportion equation
   488,716.76 : 736,404.72 = 401,914.73 : x
2. Step 2: Convert to fraction form
   488,716.76/736,404.72 = 401,914.73/x
3. Step 3: Cross multiply
   488,716.76x = 736,404.72 × 401,914.73
4. Step 4: Simplify right side
   488,716.76x = 295,971,900,527.50
5. Step 5: Solve for x
   x = 295,971,900,527.50/488,716.76
6. Step 6: Final answer
   x = 605,610.30