Finding the Fourth Proportional to 1,798.89, 2,697.63 and 874.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,798.89 : 2,697.63 = 874.18 : x
2. Step 2: Convert to fraction form
   1,798.89/2,697.63 = 874.18/x
3. Step 3: Cross multiply
   1,798.89x = 2,697.63 × 874.18
4. Step 4: Simplify right side
   1,798.89x = 2,358,198.52
5. Step 5: Solve for x
   x = 2,358,198.52/1,798.89
6. Step 6: Final answer
   x = 1,310.92