Finding the Fourth Proportional to 4,064.79, 5,609.82 and 2,931.39

Step by Step Solution

1. Step 1: Write the proportion equation
   4,064.79 : 5,609.82 = 2,931.39 : x
2. Step 2: Convert to fraction form
   4,064.79/5,609.82 = 2,931.39/x
3. Step 3: Cross multiply
   4,064.79x = 5,609.82 × 2,931.39
4. Step 4: Simplify right side
   4,064.79x = 16,444,527.54
5. Step 5: Solve for x
   x = 16,444,527.54/4,064.79
6. Step 6: Final answer
   x = 4,045.61