Finding the Fourth Proportional to 2,179.58, 3,268.72 and 946.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,179.58 : 3,268.72 = 946.69 : x
2. Step 2: Convert to fraction form
   2,179.58/3,268.72 = 946.69/x
3. Step 3: Cross multiply
   2,179.58x = 3,268.72 × 946.69
4. Step 4: Simplify right side
   2,179.58x = 3,094,457.55
5. Step 5: Solve for x
   x = 3,094,457.55/2,179.58
6. Step 6: Final answer
   x = 1,419.75