Finding the Fourth Proportional to 2,340.83, 3,511.61 and 880.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,340.83 : 3,511.61 = 880.09 : x
2. Step 2: Convert to fraction form
   2,340.83/3,511.61 = 880.09/x
3. Step 3: Cross multiply
   2,340.83x = 3,511.61 × 880.09
4. Step 4: Simplify right side
   2,340.83x = 3,090,510.89
5. Step 5: Solve for x
   x = 3,090,510.89/2,340.83
6. Step 6: Final answer
   x = 1,320.26