Finding the Fourth Proportional to 1,583.50, 2,185.23 and 884.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,583.50 : 2,185.23 = 884.89 : x
2. Step 2: Convert to fraction form
   1,583.50/2,185.23 = 884.89/x
3. Step 3: Cross multiply
   1,583.50x = 2,185.23 × 884.89
4. Step 4: Simplify right side
   1,583.50x = 1,933,688.17
5. Step 5: Solve for x
   x = 1,933,688.17/1,583.50
6. Step 6: Final answer
   x = 1,221.15