Finding the Fourth Proportional to 3,347.10, 5,019.93 and 2,112.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,347.10 : 5,019.93 = 2,112.86 : x
2. Step 2: Convert to fraction form
   3,347.10/5,019.93 = 2,112.86/x
3. Step 3: Cross multiply
   3,347.10x = 5,019.93 × 2,112.86
4. Step 4: Simplify right side
   3,347.10x = 10,606,384.20
5. Step 5: Solve for x
   x = 10,606,384.20/3,347.10
6. Step 6: Final answer
   x = 3,168.83