Finding the Fourth Proportional to 1,168.72, 1,754.34 and 1,039.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,168.72 : 1,754.34 = 1,039.55 : x
2. Step 2: Convert to fraction form
   1,168.72/1,754.34 = 1,039.55/x
3. Step 3: Cross multiply
   1,168.72x = 1,754.34 × 1,039.55
4. Step 4: Simplify right side
   1,168.72x = 1,823,715.38
5. Step 5: Solve for x
   x = 1,823,715.38/1,168.72
6. Step 6: Final answer
   x = 1,560.44