Finding the Fourth Proportional to 2,051.84, 2,831.48 and 1,155.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,051.84 : 2,831.48 = 1,155.56 : x
2. Step 2: Convert to fraction form
   2,051.84/2,831.48 = 1,155.56/x
3. Step 3: Cross multiply
   2,051.84x = 2,831.48 × 1,155.56
4. Step 4: Simplify right side
   2,051.84x = 3,271,945.03
5. Step 5: Solve for x
   x = 3,271,945.03/2,051.84
6. Step 6: Final answer
   x = 1,594.64