Finding the Fourth Proportional to 2,128.50, 2,937.36 and 1,300.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128.50 : 2,937.36 = 1,300.50 : x
2. Step 2: Convert to fraction form
   2,128.50/2,937.36 = 1,300.50/x
3. Step 3: Cross multiply
   2,128.50x = 2,937.36 × 1,300.50
4. Step 4: Simplify right side
   2,128.50x = 3,820,036.68
5. Step 5: Solve for x
   x = 3,820,036.68/2,128.50
6. Step 6: Final answer
   x = 1,794.71