Finding the Fourth Proportional to 1,633.64, 2,448.06 and 1,287.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,633.64 : 2,448.06 = 1,287.82 : x
2. Step 2: Convert to fraction form
   1,633.64/2,448.06 = 1,287.82/x
3. Step 3: Cross multiply
   1,633.64x = 2,448.06 × 1,287.82
4. Step 4: Simplify right side
   1,633.64x = 3,152,660.63
5. Step 5: Solve for x
   x = 3,152,660.63/1,633.64
6. Step 6: Final answer
   x = 1,929.84