Finding the Fourth Proportional to 2,456.28, 3,686.04 and 1,157.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,456.28 : 3,686.04 = 1,157.88 : x
2. Step 2: Convert to fraction form
   2,456.28/3,686.04 = 1,157.88/x
3. Step 3: Cross multiply
   2,456.28x = 3,686.04 × 1,157.88
4. Step 4: Simplify right side
   2,456.28x = 4,267,992.00
5. Step 5: Solve for x
   x = 4,267,992.00/2,456.28
6. Step 6: Final answer
   x = 1,737.58