Finding the Fourth Proportional to 1,917.03, 2,644.73 and 1,208.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,917.03 : 2,644.73 = 1,208.69 : x
2. Step 2: Convert to fraction form
   1,917.03/2,644.73 = 1,208.69/x
3. Step 3: Cross multiply
   1,917.03x = 2,644.73 × 1,208.69
4. Step 4: Simplify right side
   1,917.03x = 3,196,645.48
5. Step 5: Solve for x
   x = 3,196,645.48/1,917.03
6. Step 6: Final answer
   x = 1,667.50