Finding the Fourth Proportional to 1,953.56, 2,928.72 and 798.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,953.56 : 2,928.72 = 798.50 : x
2. Step 2: Convert to fraction form
   1,953.56/2,928.72 = 798.50/x
3. Step 3: Cross multiply
   1,953.56x = 2,928.72 × 798.50
4. Step 4: Simplify right side
   1,953.56x = 2,338,582.92
5. Step 5: Solve for x
   x = 2,338,582.92/1,953.56
6. Step 6: Final answer
   x = 1,197.09