Finding the Fourth Proportional to 2,240.56, 3,091.97 and 1,245.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,240.56 : 3,091.97 = 1,245.94 : x
2. Step 2: Convert to fraction form
   2,240.56/3,091.97 = 1,245.94/x
3. Step 3: Cross multiply
   2,240.56x = 3,091.97 × 1,245.94
4. Step 4: Simplify right side
   2,240.56x = 3,852,409.10
5. Step 5: Solve for x
   x = 3,852,409.10/2,240.56
6. Step 6: Final answer
   x = 1,719.40