Finding the Fourth Proportional to 456.00, 683.83 and 131.30

Step by Step Solution

1. Step 1: Write the proportion equation
   456.00 : 683.83 = 131.30 : x
2. Step 2: Convert to fraction form
   456.00/683.83 = 131.30/x
3. Step 3: Cross multiply
   456.00x = 683.83 × 131.30
4. Step 4: Simplify right side
   456.00x = 89,783.46
5. Step 5: Solve for x
   x = 89,783.46/456.00
6. Step 6: Final answer
   x = 196.90