Finding the Fourth Proportional to 3,438.59, 4,740.12 and 2,111.27

Step by Step Solution

1. Step 1: Write the proportion equation
   3,438.59 : 4,740.12 = 2,111.27 : x
2. Step 2: Convert to fraction form
   3,438.59/4,740.12 = 2,111.27/x
3. Step 3: Cross multiply
   3,438.59x = 4,740.12 × 2,111.27
4. Step 4: Simplify right side
   3,438.59x = 10,007,649.45
5. Step 5: Solve for x
   x = 10,007,649.45/3,438.59
6. Step 6: Final answer
   x = 2,910.40