Finding the Fourth Proportional to 1,402.50, 2,104.89 and 1,198.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,402.50 : 2,104.89 = 1,198.38 : x
2. Step 2: Convert to fraction form
   1,402.50/2,104.89 = 1,198.38/x
3. Step 3: Cross multiply
   1,402.50x = 2,104.89 × 1,198.38
4. Step 4: Simplify right side
   1,402.50x = 2,522,458.08
5. Step 5: Solve for x
   x = 2,522,458.08/1,402.50
6. Step 6: Final answer
   x = 1,798.54