Finding the Fourth Proportional to 2,838.50, 4,259.38 and 1,299.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,838.50 : 4,259.38 = 1,299.50 : x
2. Step 2: Convert to fraction form
   2,838.50/4,259.38 = 1,299.50/x
3. Step 3: Cross multiply
   2,838.50x = 4,259.38 × 1,299.50
4. Step 4: Simplify right side
   2,838.50x = 5,535,064.31
5. Step 5: Solve for x
   x = 5,535,064.31/2,838.50
6. Step 6: Final answer
   x = 1,950.00