Finding the Fourth Proportional to 2,341.80, 3,511.80 and 880.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,341.80 : 3,511.80 = 880.16 : x
2. Step 2: Convert to fraction form
   2,341.80/3,511.80 = 880.16/x
3. Step 3: Cross multiply
   2,341.80x = 3,511.80 × 880.16
4. Step 4: Simplify right side
   2,341.80x = 3,090,945.89
5. Step 5: Solve for x
   x = 3,090,945.89/2,341.80
6. Step 6: Final answer
   x = 1,319.90