Finding the Fourth Proportional to 1,069.54, 1,475.98 and 627.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,069.54 : 1,475.98 = 627.32 : x
2. Step 2: Convert to fraction form
   1,069.54/1,475.98 = 627.32/x
3. Step 3: Cross multiply
   1,069.54x = 1,475.98 × 627.32
4. Step 4: Simplify right side
   1,069.54x = 925,911.77
5. Step 5: Solve for x
   x = 925,911.77/1,069.54
6. Step 6: Final answer
   x = 865.71