Finding the Fourth Proportional to 6,986.91, 10,480.54 and 2,056.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,986.91 : 10,480.54 = 2,056.72 : x
2. Step 2: Convert to fraction form
   6,986.91/10,480.54 = 2,056.72/x
3. Step 3: Cross multiply
   6,986.91x = 10,480.54 × 2,056.72
4. Step 4: Simplify right side
   6,986.91x = 21,555,498.92
5. Step 5: Solve for x
   x = 21,555,498.92/6,986.91
6. Step 6: Final answer
   x = 3,085.13