Finding the Fourth Proportional to 2,108.43, 3,147.86 and 1,901.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,108.43 : 3,147.86 = 1,901.07 : x
2. Step 2: Convert to fraction form
   2,108.43/3,147.86 = 1,901.07/x
3. Step 3: Cross multiply
   2,108.43x = 3,147.86 × 1,901.07
4. Step 4: Simplify right side
   2,108.43x = 5,984,306.96
5. Step 5: Solve for x
   x = 5,984,306.96/2,108.43
6. Step 6: Final answer
   x = 2,838.28