Finding the Fourth Proportional to 5,831.98, 8,742.72 and 2,131.62

Step by Step Solution

1. Step 1: Write the proportion equation
   5,831.98 : 8,742.72 = 2,131.62 : x
2. Step 2: Convert to fraction form
   5,831.98/8,742.72 = 2,131.62/x
3. Step 3: Cross multiply
   5,831.98x = 8,742.72 × 2,131.62
4. Step 4: Simplify right side
   5,831.98x = 18,636,156.81
5. Step 5: Solve for x
   x = 18,636,156.81/5,831.98
6. Step 6: Final answer
   x = 3,195.51