Finding the Fourth Proportional to 2,061.80, 3,103.94 and 1,880.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,061.80 : 3,103.94 = 1,880.36 : x
2. Step 2: Convert to fraction form
   2,061.80/3,103.94 = 1,880.36/x
3. Step 3: Cross multiply
   2,061.80x = 3,103.94 × 1,880.36
4. Step 4: Simplify right side
   2,061.80x = 5,836,524.62
5. Step 5: Solve for x
   x = 5,836,524.62/2,061.80
6. Step 6: Final answer
   x = 2,830.79