Finding the Fourth Proportional to 1,124.10, 1,551.42 and 682.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,124.10 : 1,551.42 = 682.20 : x
2. Step 2: Convert to fraction form
   1,124.10/1,551.42 = 682.20/x
3. Step 3: Cross multiply
   1,124.10x = 1,551.42 × 682.20
4. Step 4: Simplify right side
   1,124.10x = 1,058,378.72
5. Step 5: Solve for x
   x = 1,058,378.72/1,124.10
6. Step 6: Final answer
   x = 941.53