Finding the Fourth Proportional to 2,980.86, 4,111.23 and 2,084.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,980.86 : 4,111.23 = 2,084.30 : x
2. Step 2: Convert to fraction form
   2,980.86/4,111.23 = 2,084.30/x
3. Step 3: Cross multiply
   2,980.86x = 4,111.23 × 2,084.30
4. Step 4: Simplify right side
   2,980.86x = 8,569,039.37
5. Step 5: Solve for x
   x = 8,569,039.37/2,980.86
6. Step 6: Final answer
   x = 2,874.69