Finding the Fourth Proportional to 2,979.17, 4,111.55 and 2,480.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,979.17 : 4,111.55 = 2,480.93 : x
2. Step 2: Convert to fraction form
   2,979.17/4,111.55 = 2,480.93/x
3. Step 3: Cross multiply
   2,979.17x = 4,111.55 × 2,480.93
4. Step 4: Simplify right side
   2,979.17x = 10,200,455.34
5. Step 5: Solve for x
   x = 10,200,455.34/2,979.17
6. Step 6: Final answer
   x = 3,423.93