Finding the Fourth Proportional to 3,153.31, 4,723.80 and 2,318.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,153.31 : 4,723.80 = 2,318.83 : x
2. Step 2: Convert to fraction form
   3,153.31/4,723.80 = 2,318.83/x
3. Step 3: Cross multiply
   3,153.31x = 4,723.80 × 2,318.83
4. Step 4: Simplify right side
   3,153.31x = 10,953,665.54
5. Step 5: Solve for x
   x = 10,953,665.54/3,153.31
6. Step 6: Final answer
   x = 3,473.71