Finding the Fourth Proportional to 1,635.68, 2,260.80 and 1,196.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,635.68 : 2,260.80 = 1,196.72 : x
2. Step 2: Convert to fraction form
   1,635.68/2,260.80 = 1,196.72/x
3. Step 3: Cross multiply
   1,635.68x = 2,260.80 × 1,196.72
4. Step 4: Simplify right side
   1,635.68x = 2,705,544.58
5. Step 5: Solve for x
   x = 2,705,544.58/1,635.68
6. Step 6: Final answer
   x = 1,654.08