Finding the Fourth Proportional to 2,980.56, 4,117.32 and 2,834.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,980.56 : 4,117.32 = 2,834.76 : x
2. Step 2: Convert to fraction form
   2,980.56/4,117.32 = 2,834.76/x
3. Step 3: Cross multiply
   2,980.56x = 4,117.32 × 2,834.76
4. Step 4: Simplify right side
   2,980.56x = 11,671,614.04
5. Step 5: Solve for x
   x = 11,671,614.04/2,980.56
6. Step 6: Final answer
   x = 3,915.91