Finding the Fourth Proportional to 2,112.41, 3,166.49 and 880.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,112.41 : 3,166.49 = 880.50 : x
2. Step 2: Convert to fraction form
   2,112.41/3,166.49 = 880.50/x
3. Step 3: Cross multiply
   2,112.41x = 3,166.49 × 880.50
4. Step 4: Simplify right side
   2,112.41x = 2,788,090.04
5. Step 5: Solve for x
   x = 2,788,090.04/2,112.41
6. Step 6: Final answer
   x = 1,319.87