Finding the Fourth Proportional to 1,069.51, 1,476.06 and 627.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,069.51 : 1,476.06 = 627.41 : x
2. Step 2: Convert to fraction form
   1,069.51/1,476.06 = 627.41/x
3. Step 3: Cross multiply
   1,069.51x = 1,476.06 × 627.41
4. Step 4: Simplify right side
   1,069.51x = 926,094.80
5. Step 5: Solve for x
   x = 926,094.80/1,069.51
6. Step 6: Final answer
   x = 865.91