Finding the Fourth Proportional to 2,979.15, 4,111.83 and 1,720.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,979.15 : 4,111.83 = 1,720.41 : x
2. Step 2: Convert to fraction form
   2,979.15/4,111.83 = 1,720.41/x
3. Step 3: Cross multiply
   2,979.15x = 4,111.83 × 1,720.41
4. Step 4: Simplify right side
   2,979.15x = 7,074,029.57
5. Step 5: Solve for x
   x = 7,074,029.57/2,979.15
6. Step 6: Final answer
   x = 2,374.51