Finding the Fourth Proportional to 1,411.38, 2,114.43 and 1,258.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,411.38 : 2,114.43 = 1,258.86 : x
2. Step 2: Convert to fraction form
   1,411.38/2,114.43 = 1,258.86/x
3. Step 3: Cross multiply
   1,411.38x = 2,114.43 × 1,258.86
4. Step 4: Simplify right side
   1,411.38x = 2,661,771.35
5. Step 5: Solve for x
   x = 2,661,771.35/1,411.38
6. Step 6: Final answer
   x = 1,885.94