Finding the Fourth Proportional to 2,119.56, 3,179.33 and 658.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,119.56 : 3,179.33 = 658.71 : x
2. Step 2: Convert to fraction form
   2,119.56/3,179.33 = 658.71/x
3. Step 3: Cross multiply
   2,119.56x = 3,179.33 × 658.71
4. Step 4: Simplify right side
   2,119.56x = 2,094,256.46
5. Step 5: Solve for x
   x = 2,094,256.46/2,119.56
6. Step 6: Final answer
   x = 988.06