Finding the Fourth Proportional to 2,002.78, 2,763.70 and 1,118.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,002.78 : 2,763.70 = 1,118.67 : x
2. Step 2: Convert to fraction form
   2,002.78/2,763.70 = 1,118.67/x
3. Step 3: Cross multiply
   2,002.78x = 2,763.70 × 1,118.67
4. Step 4: Simplify right side
   2,002.78x = 3,091,668.28
5. Step 5: Solve for x
   x = 3,091,668.28/2,002.78
6. Step 6: Final answer
   x = 1,543.69