Finding the Fourth Proportional to 1,168.76, 1,747.98 and 1,039.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,168.76 : 1,747.98 = 1,039.67 : x
2. Step 2: Convert to fraction form
   1,168.76/1,747.98 = 1,039.67/x
3. Step 3: Cross multiply
   1,168.76x = 1,747.98 × 1,039.67
4. Step 4: Simplify right side
   1,168.76x = 1,817,320.18
5. Step 5: Solve for x
   x = 1,817,320.18/1,168.76
6. Step 6: Final answer
   x = 1,554.91