Finding the Fourth Proportional to 2,131.98, 3,196.89 and 898.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.98 : 3,196.89 = 898.08 : x
2. Step 2: Convert to fraction form
   2,131.98/3,196.89 = 898.08/x
3. Step 3: Cross multiply
   2,131.98x = 3,196.89 × 898.08
4. Step 4: Simplify right side
   2,131.98x = 2,871,062.97
5. Step 5: Solve for x
   x = 2,871,062.97/2,131.98
6. Step 6: Final answer
   x = 1,346.67