Finding the Fourth Proportional to 3,410.86, 5,115.71 and 945.93

Step by Step Solution

1. Step 1: Write the proportion equation
   3,410.86 : 5,115.71 = 945.93 : x
2. Step 2: Convert to fraction form
   3,410.86/5,115.71 = 945.93/x
3. Step 3: Cross multiply
   3,410.86x = 5,115.71 × 945.93
4. Step 4: Simplify right side
   3,410.86x = 4,839,103.56
5. Step 5: Solve for x
   x = 4,839,103.56/3,410.86
6. Step 6: Final answer
   x = 1,418.73