Finding the Fourth Proportional to 2,943.72, 4,405.86 and 2,095.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,943.72 : 4,405.86 = 2,095.20 : x
2. Step 2: Convert to fraction form
   2,943.72/4,405.86 = 2,095.20/x
3. Step 3: Cross multiply
   2,943.72x = 4,405.86 × 2,095.20
4. Step 4: Simplify right side
   2,943.72x = 9,231,157.87
5. Step 5: Solve for x
   x = 9,231,157.87/2,943.72
6. Step 6: Final answer
   x = 3,135.88