Finding the Fourth Proportional to 2,051.81, 2,831.51 and 1,120.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,051.81 : 2,831.51 = 1,120.31 : x
2. Step 2: Convert to fraction form
   2,051.81/2,831.51 = 1,120.31/x
3. Step 3: Cross multiply
   2,051.81x = 2,831.51 × 1,120.31
4. Step 4: Simplify right side
   2,051.81x = 3,172,170.45
5. Step 5: Solve for x
   x = 3,172,170.45/2,051.81
6. Step 6: Final answer
   x = 1,546.03