Finding the Fourth Proportional to 2,613.82, 3,921.76 and 1,151.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.82 : 3,921.76 = 1,151.96 : x
2. Step 2: Convert to fraction form
   2,613.82/3,921.76 = 1,151.96/x
3. Step 3: Cross multiply
   2,613.82x = 3,921.76 × 1,151.96
4. Step 4: Simplify right side
   2,613.82x = 4,517,710.65
5. Step 5: Solve for x
   x = 4,517,710.65/2,613.82
6. Step 6: Final answer
   x = 1,728.39