Finding the Fourth Proportional to 2,106.54, 2,904.56 and 1,979.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,106.54 : 2,904.56 = 1,979.46 : x
2. Step 2: Convert to fraction form
   2,106.54/2,904.56 = 1,979.46/x
3. Step 3: Cross multiply
   2,106.54x = 2,904.56 × 1,979.46
4. Step 4: Simplify right side
   2,106.54x = 5,749,460.34
5. Step 5: Solve for x
   x = 5,749,460.34/2,106.54
6. Step 6: Final answer
   x = 2,729.34