Finding the Fourth Proportional to 2,130.82, 3,196.38 and 898.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,130.82 : 3,196.38 = 898.36 : x
2. Step 2: Convert to fraction form
   2,130.82/3,196.38 = 898.36/x
3. Step 3: Cross multiply
   2,130.82x = 3,196.38 × 898.36
4. Step 4: Simplify right side
   2,130.82x = 2,871,483.95
5. Step 5: Solve for x
   x = 2,871,483.95/2,130.82
6. Step 6: Final answer
   x = 1,347.60