Finding the Fourth Proportional to 2,240.58, 3,091.72 and 1,245.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,240.58 : 3,091.72 = 1,245.73 : x
2. Step 2: Convert to fraction form
   2,240.58/3,091.72 = 1,245.73/x
3. Step 3: Cross multiply
   2,240.58x = 3,091.72 × 1,245.73
4. Step 4: Simplify right side
   2,240.58x = 3,851,445.64
5. Step 5: Solve for x
   x = 3,851,445.64/2,240.58
6. Step 6: Final answer
   x = 1,718.95