Finding the Fourth Proportional to 1,126.47, 1,554.37 and 629.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,126.47 : 1,554.37 = 629.04 : x
2. Step 2: Convert to fraction form
   1,126.47/1,554.37 = 629.04/x
3. Step 3: Cross multiply
   1,126.47x = 1,554.37 × 629.04
4. Step 4: Simplify right side
   1,126.47x = 977,760.90
5. Step 5: Solve for x
   x = 977,760.90/1,126.47
6. Step 6: Final answer
   x = 867.99