Finding the Fourth Proportional to 2,979.05, 4,111.01 and 1,720.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,979.05 : 4,111.01 = 1,720.01 : x
2. Step 2: Convert to fraction form
   2,979.05/4,111.01 = 1,720.01/x
3. Step 3: Cross multiply
   2,979.05x = 4,111.01 × 1,720.01
4. Step 4: Simplify right side
   2,979.05x = 7,070,949.16
5. Step 5: Solve for x
   x = 7,070,949.16/2,979.05
6. Step 6: Final answer
   x = 2,373.56