Finding the Fourth Proportional to 1,357.61, 1,873.17 and 798.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,357.61 : 1,873.17 = 798.10 : x
2. Step 2: Convert to fraction form
   1,357.61/1,873.17 = 798.10/x
3. Step 3: Cross multiply
   1,357.61x = 1,873.17 × 798.10
4. Step 4: Simplify right side
   1,357.61x = 1,494,976.98
5. Step 5: Solve for x
   x = 1,494,976.98/1,357.61
6. Step 6: Final answer
   x = 1,101.18