Finding the Fourth Proportional to 2,131.58, 3,196.40 and 898.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.58 : 3,196.40 = 898.32 : x
2. Step 2: Convert to fraction form
   2,131.58/3,196.40 = 898.32/x
3. Step 3: Cross multiply
   2,131.58x = 3,196.40 × 898.32
4. Step 4: Simplify right side
   2,131.58x = 2,871,374.36
5. Step 5: Solve for x
   x = 2,871,374.36/2,131.58
6. Step 6: Final answer
   x = 1,347.06