Finding the Fourth Proportional to 3,936.10, 5,429.01 and 2,537.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,936.10 : 5,429.01 = 2,537.50 : x
2. Step 2: Convert to fraction form
   3,936.10/5,429.01 = 2,537.50/x
3. Step 3: Cross multiply
   3,936.10x = 5,429.01 × 2,537.50
4. Step 4: Simplify right side
   3,936.10x = 13,776,112.88
5. Step 5: Solve for x
   x = 13,776,112.88/3,936.10
6. Step 6: Final answer
   x = 3,499.94