Finding the Fourth Proportional to 3,507.50, 5,259.69 and 1,863.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,507.50 : 5,259.69 = 1,863.69 : x
2. Step 2: Convert to fraction form
   3,507.50/5,259.69 = 1,863.69/x
3. Step 3: Cross multiply
   3,507.50x = 5,259.69 × 1,863.69
4. Step 4: Simplify right side
   3,507.50x = 9,802,431.66
5. Step 5: Solve for x
   x = 9,802,431.66/3,507.50
6. Step 6: Final answer
   x = 2,794.71