Finding the Fourth Proportional to 1,580.94, 2,181.78 and 882.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,580.94 : 2,181.78 = 882.27 : x
2. Step 2: Convert to fraction form
   1,580.94/2,181.78 = 882.27/x
3. Step 3: Cross multiply
   1,580.94x = 2,181.78 × 882.27
4. Step 4: Simplify right side
   1,580.94x = 1,924,919.04
5. Step 5: Solve for x
   x = 1,924,919.04/1,580.94
6. Step 6: Final answer
   x = 1,217.58