Finding the Fourth Proportional to 1,050.96, 1,575.98 and 320.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,050.96 : 1,575.98 = 320.37 : x
2. Step 2: Convert to fraction form
   1,050.96/1,575.98 = 320.37/x
3. Step 3: Cross multiply
   1,050.96x = 1,575.98 × 320.37
4. Step 4: Simplify right side
   1,050.96x = 504,888.83
5. Step 5: Solve for x
   x = 504,888.83/1,050.96
6. Step 6: Final answer
   x = 480.41