Finding the Fourth Proportional to 1,348.62, 1,860.03 and 882.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,348.62 : 1,860.03 = 882.78 : x
2. Step 2: Convert to fraction form
   1,348.62/1,860.03 = 882.78/x
3. Step 3: Cross multiply
   1,348.62x = 1,860.03 × 882.78
4. Step 4: Simplify right side
   1,348.62x = 1,641,997.28
5. Step 5: Solve for x
   x = 1,641,997.28/1,348.62
6. Step 6: Final answer
   x = 1,217.54