Finding the Fourth Proportional to 1,345.50, 2,018.52 and 798.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,345.50 : 2,018.52 = 798.08 : x
2. Step 2: Convert to fraction form
   1,345.50/2,018.52 = 798.08/x
3. Step 3: Cross multiply
   1,345.50x = 2,018.52 × 798.08
4. Step 4: Simplify right side
   1,345.50x = 1,610,940.44
5. Step 5: Solve for x
   x = 1,610,940.44/1,345.50
6. Step 6: Final answer
   x = 1,197.28