Finding the Fourth Proportional to 1,993.55, 2,987.57 and 1,017.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,993.55 : 2,987.57 = 1,017.61 : x
2. Step 2: Convert to fraction form
   1,993.55/2,987.57 = 1,017.61/x
3. Step 3: Cross multiply
   1,993.55x = 2,987.57 × 1,017.61
4. Step 4: Simplify right side
   1,993.55x = 3,040,176.18
5. Step 5: Solve for x
   x = 3,040,176.18/1,993.55
6. Step 6: Final answer
   x = 1,525.01