Finding the Fourth Proportional to 3,112.89, 4,672.98 and 2,184.63

Step by Step Solution

1. Step 1: Write the proportion equation
   3,112.89 : 4,672.98 = 2,184.63 : x
2. Step 2: Convert to fraction form
   3,112.89/4,672.98 = 2,184.63/x
3. Step 3: Cross multiply
   3,112.89x = 4,672.98 × 2,184.63
4. Step 4: Simplify right side
   3,112.89x = 10,208,732.30
5. Step 5: Solve for x
   x = 10,208,732.30/3,112.89
6. Step 6: Final answer
   x = 3,279.50