Finding the Fourth Proportional to 1,128.02, 1,556.70 and 662.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,128.02 : 1,556.70 = 662.27 : x
2. Step 2: Convert to fraction form
   1,128.02/1,556.70 = 662.27/x
3. Step 3: Cross multiply
   1,128.02x = 1,556.70 × 662.27
4. Step 4: Simplify right side
   1,128.02x = 1,030,955.71
5. Step 5: Solve for x
   x = 1,030,955.71/1,128.02
6. Step 6: Final answer
   x = 913.95