Finding the Fourth Proportional to 2,099.94, 3,132.89 and 1,911.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099.94 : 3,132.89 = 1,911.30 : x
2. Step 2: Convert to fraction form
   2,099.94/3,132.89 = 1,911.30/x
3. Step 3: Cross multiply
   2,099.94x = 3,132.89 × 1,911.30
4. Step 4: Simplify right side
   2,099.94x = 5,987,883.10
5. Step 5: Solve for x
   x = 5,987,883.10/2,099.94
6. Step 6: Final answer
   x = 2,851.45