Finding the Fourth Proportional to 3,573.36, 4,930.61 and 2,156.67

Step by Step Solution

1. Step 1: Write the proportion equation
   3,573.36 : 4,930.61 = 2,156.67 : x
2. Step 2: Convert to fraction form
   3,573.36/4,930.61 = 2,156.67/x
3. Step 3: Cross multiply
   3,573.36x = 4,930.61 × 2,156.67
4. Step 4: Simplify right side
   3,573.36x = 10,633,687.89
5. Step 5: Solve for x
   x = 10,633,687.89/3,573.36
6. Step 6: Final answer
   x = 2,975.82