Finding the Fourth Proportional to 3,456.66, 5,185.83 and 1,116.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,456.66 : 5,185.83 = 1,116.72 : x
2. Step 2: Convert to fraction form
   3,456.66/5,185.83 = 1,116.72/x
3. Step 3: Cross multiply
   3,456.66x = 5,185.83 × 1,116.72
4. Step 4: Simplify right side
   3,456.66x = 5,791,120.08
5. Step 5: Solve for x
   x = 5,791,120.08/3,456.66
6. Step 6: Final answer
   x = 1,675.35