Finding the Fourth Proportional to 1,094.06, 1,509.82 and 628.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,094.06 : 1,509.82 = 628.34 : x
2. Step 2: Convert to fraction form
   1,094.06/1,509.82 = 628.34/x
3. Step 3: Cross multiply
   1,094.06x = 1,509.82 × 628.34
4. Step 4: Simplify right side
   1,094.06x = 948,680.30
5. Step 5: Solve for x
   x = 948,680.30/1,094.06
6. Step 6: Final answer
   x = 867.12