Finding the Fourth Proportional to 2,831.94, 4,248.18 and 1,075.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,831.94 : 4,248.18 = 1,075.86 : x
2. Step 2: Convert to fraction form
   2,831.94/4,248.18 = 1,075.86/x
3. Step 3: Cross multiply
   2,831.94x = 4,248.18 × 1,075.86
4. Step 4: Simplify right side
   2,831.94x = 4,570,446.93
5. Step 5: Solve for x
   x = 4,570,446.93/2,831.94
6. Step 6: Final answer
   x = 1,613.89