Finding the Fourth Proportional to 2,240.58, 3,091.97 and 1,245.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,240.58 : 3,091.97 = 1,245.83 : x
2. Step 2: Convert to fraction form
   2,240.58/3,091.97 = 1,245.83/x
3. Step 3: Cross multiply
   2,240.58x = 3,091.97 × 1,245.83
4. Step 4: Simplify right side
   2,240.58x = 3,852,079.83
5. Step 5: Solve for x
   x = 3,852,079.83/2,240.58
6. Step 6: Final answer
   x = 1,719.23