Finding the Fourth Proportional to 3,919.82, 5,411.04 and 2,407.63

Step by Step Solution

1. Step 1: Write the proportion equation
   3,919.82 : 5,411.04 = 2,407.63 : x
2. Step 2: Convert to fraction form
   3,919.82/5,411.04 = 2,407.63/x
3. Step 3: Cross multiply
   3,919.82x = 5,411.04 × 2,407.63
4. Step 4: Simplify right side
   3,919.82x = 13,027,743.14
5. Step 5: Solve for x
   x = 13,027,743.14/3,919.82
6. Step 6: Final answer
   x = 3,323.56