Finding the Fourth Proportional to 2,089.32, 2,883.24 and 1,205.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,089.32 : 2,883.24 = 1,205.28 : x
2. Step 2: Convert to fraction form
   2,089.32/2,883.24 = 1,205.28/x
3. Step 3: Cross multiply
   2,089.32x = 2,883.24 × 1,205.28
4. Step 4: Simplify right side
   2,089.32x = 3,475,111.51
5. Step 5: Solve for x
   x = 3,475,111.51/2,089.32
6. Step 6: Final answer
   x = 1,663.27