Finding the Fourth Proportional to 3,300.40, 4,921.46 and 3,270.76

Step by Step Solution

1. Step 1: Write the proportion equation
   3,300.40 : 4,921.46 = 3,270.76 : x
2. Step 2: Convert to fraction form
   3,300.40/4,921.46 = 3,270.76/x
3. Step 3: Cross multiply
   3,300.40x = 4,921.46 × 3,270.76
4. Step 4: Simplify right side
   3,300.40x = 16,096,914.51
5. Step 5: Solve for x
   x = 16,096,914.51/3,300.40
6. Step 6: Final answer
   x = 4,877.26