Finding the Fourth Proportional to 1,411.55, 1,946.19 and 1,079.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,411.55 : 1,946.19 = 1,079.45 : x
2. Step 2: Convert to fraction form
   1,411.55/1,946.19 = 1,079.45/x
3. Step 3: Cross multiply
   1,411.55x = 1,946.19 × 1,079.45
4. Step 4: Simplify right side
   1,411.55x = 2,100,814.80
5. Step 5: Solve for x
   x = 2,100,814.80/1,411.55
6. Step 6: Final answer
   x = 1,488.30