Finding the Fourth Proportional to 1,351.41, 1,876.17 and 1,311.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,351.41 : 1,876.17 = 1,311.32 : x
2. Step 2: Convert to fraction form
   1,351.41/1,876.17 = 1,311.32/x
3. Step 3: Cross multiply
   1,351.41x = 1,876.17 × 1,311.32
4. Step 4: Simplify right side
   1,351.41x = 2,460,249.86
5. Step 5: Solve for x
   x = 2,460,249.86/1,351.41
6. Step 6: Final answer
   x = 1,820.51