Finding the Fourth Proportional to 2,002.65, 2,763.61 and 1,118.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,002.65 : 2,763.61 = 1,118.40 : x
2. Step 2: Convert to fraction form
   2,002.65/2,763.61 = 1,118.40/x
3. Step 3: Cross multiply
   2,002.65x = 2,763.61 × 1,118.40
4. Step 4: Simplify right side
   2,002.65x = 3,090,821.42
5. Step 5: Solve for x
   x = 3,090,821.42/2,002.65
6. Step 6: Final answer
   x = 1,543.37