Finding the Fourth Proportional to 2,513.12, 3,769.52 and 1,539.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,513.12 : 3,769.52 = 1,539.36 : x
2. Step 2: Convert to fraction form
   2,513.12/3,769.52 = 1,539.36/x
3. Step 3: Cross multiply
   2,513.12x = 3,769.52 × 1,539.36
4. Step 4: Simplify right side
   2,513.12x = 5,802,648.31
5. Step 5: Solve for x
   x = 5,802,648.31/2,513.12
6. Step 6: Final answer
   x = 2,308.94