Finding the Fourth Proportional to 2,007.10, 3,005.18 and 1,697.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,007.10 : 3,005.18 = 1,697.28 : x
2. Step 2: Convert to fraction form
   2,007.10/3,005.18 = 1,697.28/x
3. Step 3: Cross multiply
   2,007.10x = 3,005.18 × 1,697.28
4. Step 4: Simplify right side
   2,007.10x = 5,100,631.91
5. Step 5: Solve for x
   x = 5,100,631.91/2,007.10
6. Step 6: Final answer
   x = 2,541.29