Finding the Fourth Proportional to 2,002.61, 2,763.59 and 1,118.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,002.61 : 2,763.59 = 1,118.41 : x
2. Step 2: Convert to fraction form
   2,002.61/2,763.59 = 1,118.41/x
3. Step 3: Cross multiply
   2,002.61x = 2,763.59 × 1,118.41
4. Step 4: Simplify right side
   2,002.61x = 3,090,826.69
5. Step 5: Solve for x
   x = 3,090,826.69/2,002.61
6. Step 6: Final answer
   x = 1,543.40