Finding the Fourth Proportional to 3,443.86, 5,166.17 and 1,103.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,443.86 : 5,166.17 = 1,103.31 : x
2. Step 2: Convert to fraction form
   3,443.86/5,166.17 = 1,103.31/x
3. Step 3: Cross multiply
   3,443.86x = 5,166.17 × 1,103.31
4. Step 4: Simplify right side
   3,443.86x = 5,699,881.51
5. Step 5: Solve for x
   x = 5,699,881.51/3,443.86
6. Step 6: Final answer
   x = 1,655.09