Finding the Fourth Proportional to 2,613.54, 3,921.34 and 1,151.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.54 : 3,921.34 = 1,151.67 : x
2. Step 2: Convert to fraction form
   2,613.54/3,921.34 = 1,151.67/x
3. Step 3: Cross multiply
   2,613.54x = 3,921.34 × 1,151.67
4. Step 4: Simplify right side
   2,613.54x = 4,516,078.33
5. Step 5: Solve for x
   x = 4,516,078.33/2,613.54
6. Step 6: Final answer
   x = 1,727.95