Finding the Fourth Proportional to 1,267.42, 1,900.82 and 401.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,267.42 : 1,900.82 = 401.73 : x
2. Step 2: Convert to fraction form
   1,267.42/1,900.82 = 401.73/x
3. Step 3: Cross multiply
   1,267.42x = 1,900.82 × 401.73
4. Step 4: Simplify right side
   1,267.42x = 763,616.42
5. Step 5: Solve for x
   x = 763,616.42/1,267.42
6. Step 6: Final answer
   x = 602.50