Finding the Fourth Proportional to 3,436.15, 5,149.59 and 2,507.35

Step by Step Solution

1. Step 1: Write the proportion equation
   3,436.15 : 5,149.59 = 2,507.35 : x
2. Step 2: Convert to fraction form
   3,436.15/5,149.59 = 2,507.35/x
3. Step 3: Cross multiply
   3,436.15x = 5,149.59 × 2,507.35
4. Step 4: Simplify right side
   3,436.15x = 12,911,824.49
5. Step 5: Solve for x
   x = 12,911,824.49/3,436.15
6. Step 6: Final answer
   x = 3,757.64