Finding the Fourth Proportional to 1,229.31, 1,696.55 and 705.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,229.31 : 1,696.55 = 705.38 : x
2. Step 2: Convert to fraction form
   1,229.31/1,696.55 = 705.38/x
3. Step 3: Cross multiply
   1,229.31x = 1,696.55 × 705.38
4. Step 4: Simplify right side
   1,229.31x = 1,196,700.43
5. Step 5: Solve for x
   x = 1,196,700.43/1,229.31
6. Step 6: Final answer
   x = 973.47