Finding the Fourth Proportional to 1,185.55, 1,635.85 and 713.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,185.55 : 1,635.85 = 713.33 : x
2. Step 2: Convert to fraction form
   1,185.55/1,635.85 = 713.33/x
3. Step 3: Cross multiply
   1,185.55x = 1,635.85 × 713.33
4. Step 4: Simplify right side
   1,185.55x = 1,166,899.73
5. Step 5: Solve for x
   x = 1,166,899.73/1,185.55
6. Step 6: Final answer
   x = 984.27