Finding the Fourth Proportional to 2,931.14, 4,046.86 and 2,615.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,931.14 : 4,046.86 = 2,615.86 : x
2. Step 2: Convert to fraction form
   2,931.14/4,046.86 = 2,615.86/x
3. Step 3: Cross multiply
   2,931.14x = 4,046.86 × 2,615.86
4. Step 4: Simplify right side
   2,931.14x = 10,586,002.54
5. Step 5: Solve for x
   x = 10,586,002.54/2,931.14
6. Step 6: Final answer
   x = 3,611.56