Finding the Fourth Proportional to 2,108.94, 3,161.58 and 1,068.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,108.94 : 3,161.58 = 1,068.12 : x
2. Step 2: Convert to fraction form
   2,108.94/3,161.58 = 1,068.12/x
3. Step 3: Cross multiply
   2,108.94x = 3,161.58 × 1,068.12
4. Step 4: Simplify right side
   2,108.94x = 3,376,946.83
5. Step 5: Solve for x
   x = 3,376,946.83/2,108.94
6. Step 6: Final answer
   x = 1,601.25