Finding the Fourth Proportional to 1,083.27, 1,495.02 and 641.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,083.27 : 1,495.02 = 641.32 : x
2. Step 2: Convert to fraction form
   1,083.27/1,495.02 = 641.32/x
3. Step 3: Cross multiply
   1,083.27x = 1,495.02 × 641.32
4. Step 4: Simplify right side
   1,083.27x = 958,786.23
5. Step 5: Solve for x
   x = 958,786.23/1,083.27
6. Step 6: Final answer
   x = 885.09