Finding the Fourth Proportional to 2,071.60, 3,104.66 and 1,809.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071.60 : 3,104.66 = 1,809.16 : x
2. Step 2: Convert to fraction form
   2,071.60/3,104.66 = 1,809.16/x
3. Step 3: Cross multiply
   2,071.60x = 3,104.66 × 1,809.16
4. Step 4: Simplify right side
   2,071.60x = 5,616,826.69
5. Step 5: Solve for x
   x = 5,616,826.69/2,071.60
6. Step 6: Final answer
   x = 2,711.35