Finding the Fourth Proportional to 1,348.31, 1,860.70 and 882.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,348.31 : 1,860.70 = 882.56 : x
2. Step 2: Convert to fraction form
   1,348.31/1,860.70 = 882.56/x
3. Step 3: Cross multiply
   1,348.31x = 1,860.70 × 882.56
4. Step 4: Simplify right side
   1,348.31x = 1,642,179.39
5. Step 5: Solve for x
   x = 1,642,179.39/1,348.31
6. Step 6: Final answer
   x = 1,217.95