Finding the Fourth Proportional to 3,425.16, 5,137.32 and 1,085.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,425.16 : 5,137.32 = 1,085.10 : x
2. Step 2: Convert to fraction form
   3,425.16/5,137.32 = 1,085.10/x
3. Step 3: Cross multiply
   3,425.16x = 5,137.32 × 1,085.10
4. Step 4: Simplify right side
   3,425.16x = 5,574,505.93
5. Step 5: Solve for x
   x = 5,574,505.93/3,425.16
6. Step 6: Final answer
   x = 1,627.52