Finding the Fourth Proportional to 2,002.80, 2,763.95 and 1,118.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,002.80 : 2,763.95 = 1,118.69 : x
2. Step 2: Convert to fraction form
   2,002.80/2,763.95 = 1,118.69/x
3. Step 3: Cross multiply
   2,002.80x = 2,763.95 × 1,118.69
4. Step 4: Simplify right side
   2,002.80x = 3,091,983.81
5. Step 5: Solve for x
   x = 3,091,983.81/2,002.80
6. Step 6: Final answer
   x = 1,543.83