Finding the Fourth Proportional to 2,200.10, 3,035.85 and 1,315.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,200.10 : 3,035.85 = 1,315.58 : x
2. Step 2: Convert to fraction form
   2,200.10/3,035.85 = 1,315.58/x
3. Step 3: Cross multiply
   2,200.10x = 3,035.85 × 1,315.58
4. Step 4: Simplify right side
   2,200.10x = 3,993,903.54
5. Step 5: Solve for x
   x = 3,993,903.54/2,200.10
6. Step 6: Final answer
   x = 1,815.33