Finding the Fourth Proportional to 3,449.76, 5,173.91 and 1,109.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,449.76 : 5,173.91 = 1,109.96 : x
2. Step 2: Convert to fraction form
   3,449.76/5,173.91 = 1,109.96/x
3. Step 3: Cross multiply
   3,449.76x = 5,173.91 × 1,109.96
4. Step 4: Simplify right side
   3,449.76x = 5,742,826.59
5. Step 5: Solve for x
   x = 5,742,826.59/3,449.76
6. Step 6: Final answer
   x = 1,664.70