Finding the Fourth Proportional to 3,098.63, 4,271.89 and 2,212.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,098.63 : 4,271.89 = 2,212.89 : x
2. Step 2: Convert to fraction form
   3,098.63/4,271.89 = 2,212.89/x
3. Step 3: Cross multiply
   3,098.63x = 4,271.89 × 2,212.89
4. Step 4: Simplify right side
   3,098.63x = 9,453,222.66
5. Step 5: Solve for x
   x = 9,453,222.66/3,098.63
6. Step 6: Final answer
   x = 3,050.77