Finding the Fourth Proportional to 1,575.72, 2,175.57 and 1,017.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,575.72 : 2,175.57 = 1,017.54 : x
2. Step 2: Convert to fraction form
   1,575.72/2,175.57 = 1,017.54/x
3. Step 3: Cross multiply
   1,575.72x = 2,175.57 × 1,017.54
4. Step 4: Simplify right side
   1,575.72x = 2,213,729.50
5. Step 5: Solve for x
   x = 2,213,729.50/1,575.72
6. Step 6: Final answer
   x = 1,404.90