Finding the Fourth Proportional to 1,583.42, 2,185.18 and 884.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,583.42 : 2,185.18 = 884.76 : x
2. Step 2: Convert to fraction form
   1,583.42/2,185.18 = 884.76/x
3. Step 3: Cross multiply
   1,583.42x = 2,185.18 × 884.76
4. Step 4: Simplify right side
   1,583.42x = 1,933,359.86
5. Step 5: Solve for x
   x = 1,933,359.86/1,583.42
6. Step 6: Final answer
   x = 1,221.00