Finding the Fourth Proportional to 1,017.57, 1,523.62 and 837.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,017.57 : 1,523.62 = 837.15 : x
2. Step 2: Convert to fraction form
   1,017.57/1,523.62 = 837.15/x
3. Step 3: Cross multiply
   1,017.57x = 1,523.62 × 837.15
4. Step 4: Simplify right side
   1,017.57x = 1,275,498.48
5. Step 5: Solve for x
   x = 1,275,498.48/1,017.57
6. Step 6: Final answer
   x = 1,253.47