Finding the Fourth Proportional to 1,049.94, 1,575.42 and 401.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,049.94 : 1,575.42 = 401.12 : x
2. Step 2: Convert to fraction form
   1,049.94/1,575.42 = 401.12/x
3. Step 3: Cross multiply
   1,049.94x = 1,575.42 × 401.12
4. Step 4: Simplify right side
   1,049.94x = 631,932.47
5. Step 5: Solve for x
   x = 631,932.47/1,049.94
6. Step 6: Final answer
   x = 601.87