Finding the Fourth Proportional to 3,476.56, 5,215.10 and 1,105.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,476.56 : 5,215.10 = 1,105.18 : x
2. Step 2: Convert to fraction form
   3,476.56/5,215.10 = 1,105.18/x
3. Step 3: Cross multiply
   3,476.56x = 5,215.10 × 1,105.18
4. Step 4: Simplify right side
   3,476.56x = 5,763,624.22
5. Step 5: Solve for x
   x = 5,763,624.22/3,476.56
6. Step 6: Final answer
   x = 1,657.85