Finding the Fourth Proportional to 2,031.14, 2,801.86 and 1,191.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,031.14 : 2,801.86 = 1,191.68 : x
2. Step 2: Convert to fraction form
   2,031.14/2,801.86 = 1,191.68/x
3. Step 3: Cross multiply
   2,031.14x = 2,801.86 × 1,191.68
4. Step 4: Simplify right side
   2,031.14x = 3,338,914.04
5. Step 5: Solve for x
   x = 3,338,914.04/2,031.14
6. Step 6: Final answer
   x = 1,643.86