Finding the Fourth Proportional to 4,680.76, 7,023.72 and 1,909.34

Step by Step Solution

1. Step 1: Write the proportion equation
   4,680.76 : 7,023.72 = 1,909.34 : x
2. Step 2: Convert to fraction form
   4,680.76/7,023.72 = 1,909.34/x
3. Step 3: Cross multiply
   4,680.76x = 7,023.72 × 1,909.34
4. Step 4: Simplify right side
   4,680.76x = 13,410,669.54
5. Step 5: Solve for x
   x = 13,410,669.54/4,680.76
6. Step 6: Final answer
   x = 2,865.06