Finding the Fourth Proportional to 1,453.33, 2,005.89 and 855.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,453.33 : 2,005.89 = 855.89 : x
2. Step 2: Convert to fraction form
   1,453.33/2,005.89 = 855.89/x
3. Step 3: Cross multiply
   1,453.33x = 2,005.89 × 855.89
4. Step 4: Simplify right side
   1,453.33x = 1,716,823.52
5. Step 5: Solve for x
   x = 1,716,823.52/1,453.33
6. Step 6: Final answer
   x = 1,181.30