Finding the Fourth Proportional to 1,093.42, 1,509.06 and 627.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,093.42 : 1,509.06 = 627.67 : x
2. Step 2: Convert to fraction form
   1,093.42/1,509.06 = 627.67/x
3. Step 3: Cross multiply
   1,093.42x = 1,509.06 × 627.67
4. Step 4: Simplify right side
   1,093.42x = 947,191.69
5. Step 5: Solve for x
   x = 947,191.69/1,093.42
6. Step 6: Final answer
   x = 866.27