Finding the Fourth Proportional to 3,411.22, 5,116.23 and 1,102.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,411.22 : 5,116.23 = 1,102.72 : x
2. Step 2: Convert to fraction form
   3,411.22/5,116.23 = 1,102.72/x
3. Step 3: Cross multiply
   3,411.22x = 5,116.23 × 1,102.72
4. Step 4: Simplify right side
   3,411.22x = 5,641,769.15
5. Step 5: Solve for x
   x = 5,641,769.15/3,411.22
6. Step 6: Final answer
   x = 1,653.89