Finding the Fourth Proportional to 1,050.52, 1,575.71 and 320.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,050.52 : 1,575.71 = 320.10 : x
2. Step 2: Convert to fraction form
   1,050.52/1,575.71 = 320.10/x
3. Step 3: Cross multiply
   1,050.52x = 1,575.71 × 320.10
4. Step 4: Simplify right side
   1,050.52x = 504,384.77
5. Step 5: Solve for x
   x = 504,384.77/1,050.52
6. Step 6: Final answer
   x = 480.13