Finding the Fourth Proportional to 2,051.91, 2,831.78 and 1,168.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,051.91 : 2,831.78 = 1,168.00 : x
2. Step 2: Convert to fraction form
   2,051.91/2,831.78 = 1,168.00/x
3. Step 3: Cross multiply
   2,051.91x = 2,831.78 × 1,168.00
4. Step 4: Simplify right side
   2,051.91x = 3,307,514.88
5. Step 5: Solve for x
   x = 3,307,514.88/2,051.91
6. Step 6: Final answer
   x = 1,611.92