Finding the Fourth Proportional to 1,227.38, 1,693.78 and 703.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,227.38 : 1,693.78 = 703.71 : x
2. Step 2: Convert to fraction form
   1,227.38/1,693.78 = 703.71/x
3. Step 3: Cross multiply
   1,227.38x = 1,693.78 × 703.71
4. Step 4: Simplify right side
   1,227.38x = 1,191,928.16
5. Step 5: Solve for x
   x = 1,191,928.16/1,227.38
6. Step 6: Final answer
   x = 971.12