Finding the Fourth Proportional to 2,308.62, 3,189.38 and 1,513.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308.62 : 3,189.38 = 1,513.83 : x
2. Step 2: Convert to fraction form
   2,308.62/3,189.38 = 1,513.83/x
3. Step 3: Cross multiply
   2,308.62x = 3,189.38 × 1,513.83
4. Step 4: Simplify right side
   2,308.62x = 4,828,171.56
5. Step 5: Solve for x
   x = 4,828,171.56/2,308.62
6. Step 6: Final answer
   x = 2,091.37