Finding the Fourth Proportional to 1,123.00, 1,549.70 and 625.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123.00 : 1,549.70 = 625.62 : x
2. Step 2: Convert to fraction form
   1,123.00/1,549.70 = 625.62/x
3. Step 3: Cross multiply
   1,123.00x = 1,549.70 × 625.62
4. Step 4: Simplify right side
   1,123.00x = 969,523.31
5. Step 5: Solve for x
   x = 969,523.31/1,123.00
6. Step 6: Final answer
   x = 863.34