Finding the Fourth Proportional to 2,051.85, 2,831.57 and 1,120.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,051.85 : 2,831.57 = 1,120.35 : x
2. Step 2: Convert to fraction form
   2,051.85/2,831.57 = 1,120.35/x
3. Step 3: Cross multiply
   2,051.85x = 2,831.57 × 1,120.35
4. Step 4: Simplify right side
   2,051.85x = 3,172,349.45
5. Step 5: Solve for x
   x = 3,172,349.45/2,051.85
6. Step 6: Final answer
   x = 1,546.09