Finding the Fourth Proportional to 2,176.04, 3,002.94 and 1,291.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,176.04 : 3,002.94 = 1,291.91 : x
2. Step 2: Convert to fraction form
   2,176.04/3,002.94 = 1,291.91/x
3. Step 3: Cross multiply
   2,176.04x = 3,002.94 × 1,291.91
4. Step 4: Simplify right side
   2,176.04x = 3,879,513.20
5. Step 5: Solve for x
   x = 3,879,513.20/2,176.04
6. Step 6: Final answer
   x = 1,782.83