Finding the Fourth Proportional to 1,124.82, 1,552.20 and 627.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,124.82 : 1,552.20 = 627.45 : x
2. Step 2: Convert to fraction form
   1,124.82/1,552.20 = 627.45/x
3. Step 3: Cross multiply
   1,124.82x = 1,552.20 × 627.45
4. Step 4: Simplify right side
   1,124.82x = 973,927.89
5. Step 5: Solve for x
   x = 973,927.89/1,124.82
6. Step 6: Final answer
   x = 865.85