Finding the Fourth Proportional to 1,300.05, 1,950.13 and 326.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.05 : 1,950.13 = 326.16 : x
2. Step 2: Convert to fraction form
   1,300.05/1,950.13 = 326.16/x
3. Step 3: Cross multiply
   1,300.05x = 1,950.13 × 326.16
4. Step 4: Simplify right side
   1,300.05x = 636,043.83
5. Step 5: Solve for x
   x = 636,043.83/1,300.05
6. Step 6: Final answer
   x = 489.25