Finding the Fourth Proportional to 2,618.83, 3,927.63 and 1,157.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,618.83 : 3,927.63 = 1,157.18 : x
2. Step 2: Convert to fraction form
   2,618.83/3,927.63 = 1,157.18/x
3. Step 3: Cross multiply
   2,618.83x = 3,927.63 × 1,157.18
4. Step 4: Simplify right side
   2,618.83x = 4,544,974.88
5. Step 5: Solve for x
   x = 4,544,974.88/2,618.83
6. Step 6: Final answer
   x = 1,735.50