Finding the Fourth Proportional to 1,118.89, 1,545.99 and 1,079.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,118.89 : 1,545.99 = 1,079.47 : x
2. Step 2: Convert to fraction form
   1,118.89/1,545.99 = 1,079.47/x
3. Step 3: Cross multiply
   1,118.89x = 1,545.99 × 1,079.47
4. Step 4: Simplify right side
   1,118.89x = 1,668,849.83
5. Step 5: Solve for x
   x = 1,668,849.83/1,118.89
6. Step 6: Final answer
   x = 1,491.52