Finding the Fourth Proportional to 3,705.43, 5,113.15 and 2,112.16

Step by Step Solution

1. Step 1: Write the proportion equation
   3,705.43 : 5,113.15 = 2,112.16 : x
2. Step 2: Convert to fraction form
   3,705.43/5,113.15 = 2,112.16/x
3. Step 3: Cross multiply
   3,705.43x = 5,113.15 × 2,112.16
4. Step 4: Simplify right side
   3,705.43x = 10,799,790.90
5. Step 5: Solve for x
   x = 10,799,790.90/3,705.43
6. Step 6: Final answer
   x = 2,914.59