Finding the Fourth Proportional to 1,123.03, 1,549.85 and 625.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123.03 : 1,549.85 = 625.67 : x
2. Step 2: Convert to fraction form
   1,123.03/1,549.85 = 625.67/x
3. Step 3: Cross multiply
   1,123.03x = 1,549.85 × 625.67
4. Step 4: Simplify right side
   1,123.03x = 969,701.82
5. Step 5: Solve for x
   x = 969,701.82/1,123.03
6. Step 6: Final answer
   x = 863.47