Finding the Fourth Proportional to 2,002.68, 2,763.78 and 1,118.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,002.68 : 2,763.78 = 1,118.56 : x
2. Step 2: Convert to fraction form
   2,002.68/2,763.78 = 1,118.56/x
3. Step 3: Cross multiply
   2,002.68x = 2,763.78 × 1,118.56
4. Step 4: Simplify right side
   2,002.68x = 3,091,453.76
5. Step 5: Solve for x
   x = 3,091,453.76/2,002.68
6. Step 6: Final answer
   x = 1,543.66