Finding the Fourth Proportional to 3,160.96, 4,737.12 and 1,618.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,160.96 : 4,737.12 = 1,618.72 : x
2. Step 2: Convert to fraction form
   3,160.96/4,737.12 = 1,618.72/x
3. Step 3: Cross multiply
   3,160.96x = 4,737.12 × 1,618.72
4. Step 4: Simplify right side
   3,160.96x = 7,668,070.89
5. Step 5: Solve for x
   x = 7,668,070.89/3,160.96
6. Step 6: Final answer
   x = 2,425.87