Finding the Fourth Proportional to 2,090.68, 2,884.82 and 1,206.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,090.68 : 2,884.82 = 1,206.32 : x
2. Step 2: Convert to fraction form
   2,090.68/2,884.82 = 1,206.32/x
3. Step 3: Cross multiply
   2,090.68x = 2,884.82 × 1,206.32
4. Step 4: Simplify right side
   2,090.68x = 3,480,016.06
5. Step 5: Solve for x
   x = 3,480,016.06/2,090.68
6. Step 6: Final answer
   x = 1,664.54