Finding the Fourth Proportional to 1,167.72, 1,747.47 and 705.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,167.72 : 1,747.47 = 705.18 : x
2. Step 2: Convert to fraction form
   1,167.72/1,747.47 = 705.18/x
3. Step 3: Cross multiply
   1,167.72x = 1,747.47 × 705.18
4. Step 4: Simplify right side
   1,167.72x = 1,232,280.89
5. Step 5: Solve for x
   x = 1,232,280.89/1,167.72
6. Step 6: Final answer
   x = 1,055.29