Finding the Fourth Proportional to 4,105.20, 6,155.76 and 1,764.96

Step by Step Solution

1. Step 1: Write the proportion equation
   4,105.20 : 6,155.76 = 1,764.96 : x
2. Step 2: Convert to fraction form
   4,105.20/6,155.76 = 1,764.96/x
3. Step 3: Cross multiply
   4,105.20x = 6,155.76 × 1,764.96
4. Step 4: Simplify right side
   4,105.20x = 10,864,670.17
5. Step 5: Solve for x
   x = 10,864,670.17/4,105.20
6. Step 6: Final answer
   x = 2,646.56