Finding the Fourth Proportional to 1,105.04, 1,523.09 and 711.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.04 : 1,523.09 = 711.38 : x
2. Step 2: Convert to fraction form
   1,105.04/1,523.09 = 711.38/x
3. Step 3: Cross multiply
   1,105.04x = 1,523.09 × 711.38
4. Step 4: Simplify right side
   1,105.04x = 1,083,501.35
5. Step 5: Solve for x
   x = 1,083,501.35/1,105.04
6. Step 6: Final answer
   x = 980.51