Finding the Fourth Proportional to 3,417.39, 5,127.30 and 1,108.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,417.39 : 5,127.30 = 1,108.89 : x
2. Step 2: Convert to fraction form
   3,417.39/5,127.30 = 1,108.89/x
3. Step 3: Cross multiply
   3,417.39x = 5,127.30 × 1,108.89
4. Step 4: Simplify right side
   3,417.39x = 5,685,611.70
5. Step 5: Solve for x
   x = 5,685,611.70/3,417.39
6. Step 6: Final answer
   x = 1,663.73