Finding the Fourth Proportional to 2,002.10, 2,763 and 1,117.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,002.10 : 2,763 = 1,117.89 : x
2. Step 2: Convert to fraction form
   2,002.10/2,763 = 1,117.89/x
3. Step 3: Cross multiply
   2,002.10x = 2,763 × 1,117.89
4. Step 4: Simplify right side
   2,002.10x = 3,088,730.07
5. Step 5: Solve for x
   x = 3,088,730.07/2,002.10
6. Step 6: Final answer
   x = 1,542.75