Finding the Fourth Proportional to 2,054.35, 2,831.72 and 1,611.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,054.35 : 2,831.72 = 1,611.48 : x
2. Step 2: Convert to fraction form
   2,054.35/2,831.72 = 1,611.48/x
3. Step 3: Cross multiply
   2,054.35x = 2,831.72 × 1,611.48
4. Step 4: Simplify right side
   2,054.35x = 4,563,260.15
5. Step 5: Solve for x
   x = 4,563,260.15/2,054.35
6. Step 6: Final answer
   x = 2,221.27