Finding the Fourth Proportional to 2,131.76, 3,195.75 and 898.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.76 : 3,195.75 = 898.49 : x
2. Step 2: Convert to fraction form
   2,131.76/3,195.75 = 898.49/x
3. Step 3: Cross multiply
   2,131.76x = 3,195.75 × 898.49
4. Step 4: Simplify right side
   2,131.76x = 2,871,360.78
5. Step 5: Solve for x
   x = 2,871,360.78/2,131.76
6. Step 6: Final answer
   x = 1,346.95