Finding the Fourth Proportional to 2,478.33, 3,717.59 and 1,017.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,478.33 : 3,717.59 = 1,017.09 : x
2. Step 2: Convert to fraction form
   2,478.33/3,717.59 = 1,017.09/x
3. Step 3: Cross multiply
   2,478.33x = 3,717.59 × 1,017.09
4. Step 4: Simplify right side
   2,478.33x = 3,781,118.53
5. Step 5: Solve for x
   x = 3,781,118.53/2,478.33
6. Step 6: Final answer
   x = 1,525.67