Finding the Fourth Proportional to 2,002.11, 2,762.90 and 1,117.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,002.11 : 2,762.90 = 1,117.91 : x
2. Step 2: Convert to fraction form
   2,002.11/2,762.90 = 1,117.91/x
3. Step 3: Cross multiply
   2,002.11x = 2,762.90 × 1,117.91
4. Step 4: Simplify right side
   2,002.11x = 3,088,673.54
5. Step 5: Solve for x
   x = 3,088,673.54/2,002.11
6. Step 6: Final answer
   x = 1,542.71