Finding the Fourth Proportional to 1,123.53, 1,551.30 and 682.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123.53 : 1,551.30 = 682.02 : x
2. Step 2: Convert to fraction form
   1,123.53/1,551.30 = 682.02/x
3. Step 3: Cross multiply
   1,123.53x = 1,551.30 × 682.02
4. Step 4: Simplify right side
   1,123.53x = 1,058,017.63
5. Step 5: Solve for x
   x = 1,058,017.63/1,123.53
6. Step 6: Final answer
   x = 941.69