Finding the Fourth Proportional to 1,885.41, 2,822.83 and 1,421.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,885.41 : 2,822.83 = 1,421.73 : x
2. Step 2: Convert to fraction form
   1,885.41/2,822.83 = 1,421.73/x
3. Step 3: Cross multiply
   1,885.41x = 2,822.83 × 1,421.73
4. Step 4: Simplify right side
   1,885.41x = 4,013,298.54
5. Step 5: Solve for x
   x = 4,013,298.54/1,885.41
6. Step 6: Final answer
   x = 2,128.61