Finding the Fourth Proportional to 2,311.34, 3,458.49 and 1,387.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,311.34 : 3,458.49 = 1,387.46 : x
2. Step 2: Convert to fraction form
   2,311.34/3,458.49 = 1,387.46/x
3. Step 3: Cross multiply
   2,311.34x = 3,458.49 × 1,387.46
4. Step 4: Simplify right side
   2,311.34x = 4,798,516.54
5. Step 5: Solve for x
   x = 4,798,516.54/2,311.34
6. Step 6: Final answer
   x = 2,076.08