Finding the Fourth Proportional to 1,357.63, 1,873.91 and 798.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,357.63 : 1,873.91 = 798.12 : x
2. Step 2: Convert to fraction form
   1,357.63/1,873.91 = 798.12/x
3. Step 3: Cross multiply
   1,357.63x = 1,873.91 × 798.12
4. Step 4: Simplify right side
   1,357.63x = 1,495,607.04
5. Step 5: Solve for x
   x = 1,495,607.04/1,357.63
6. Step 6: Final answer
   x = 1,101.63