Finding the Fourth Proportional to 2,245.05, 3,097.28 and 1,313.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,245.05 : 3,097.28 = 1,313.01 : x
2. Step 2: Convert to fraction form
   2,245.05/3,097.28 = 1,313.01/x
3. Step 3: Cross multiply
   2,245.05x = 3,097.28 × 1,313.01
4. Step 4: Simplify right side
   2,245.05x = 4,066,753.05
5. Step 5: Solve for x
   x = 4,066,753.05/2,245.05
6. Step 6: Final answer
   x = 1,811.43