Finding the Fourth Proportional to 1,085.34, 1,627.77 and 537.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,085.34 : 1,627.77 = 537.33 : x
2. Step 2: Convert to fraction form
   1,085.34/1,627.77 = 537.33/x
3. Step 3: Cross multiply
   1,085.34x = 1,627.77 × 537.33
4. Step 4: Simplify right side
   1,085.34x = 874,649.65
5. Step 5: Solve for x
   x = 874,649.65/1,085.34
6. Step 6: Final answer
   x = 805.88