Finding the Fourth Proportional to 3,445.50, 5,168.79 and 1,137.54

Step by Step Solution

1. Step 1: Write the proportion equation
   3,445.50 : 5,168.79 = 1,137.54 : x
2. Step 2: Convert to fraction form
   3,445.50/5,168.79 = 1,137.54/x
3. Step 3: Cross multiply
   3,445.50x = 5,168.79 × 1,137.54
4. Step 4: Simplify right side
   3,445.50x = 5,879,705.38
5. Step 5: Solve for x
   x = 5,879,705.38/3,445.50
6. Step 6: Final answer
   x = 1,706.49