Finding the Fourth Proportional to 1,580.69, 2,181.51 and 882.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,580.69 : 2,181.51 = 882.06 : x
2. Step 2: Convert to fraction form
   1,580.69/2,181.51 = 882.06/x
3. Step 3: Cross multiply
   1,580.69x = 2,181.51 × 882.06
4. Step 4: Simplify right side
   1,580.69x = 1,924,222.71
5. Step 5: Solve for x
   x = 1,924,222.71/1,580.69
6. Step 6: Final answer
   x = 1,217.33