Finding the Fourth Proportional to 3,810.96, 5,259.48 and 3,513.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,810.96 : 5,259.48 = 3,513.15 : x
2. Step 2: Convert to fraction form
   3,810.96/5,259.48 = 3,513.15/x
3. Step 3: Cross multiply
   3,810.96x = 5,259.48 × 3,513.15
4. Step 4: Simplify right side
   3,810.96x = 18,477,342.16
5. Step 5: Solve for x
   x = 18,477,342.16/3,810.96
6. Step 6: Final answer
   x = 4,848.47