Finding the Fourth Proportional to 1,219.50, 1,817.67 and 1,148.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,219.50 : 1,817.67 = 1,148.49 : x
2. Step 2: Convert to fraction form
   1,219.50/1,817.67 = 1,148.49/x
3. Step 3: Cross multiply
   1,219.50x = 1,817.67 × 1,148.49
4. Step 4: Simplify right side
   1,219.50x = 2,087,575.82
5. Step 5: Solve for x
   x = 2,087,575.82/1,219.50
6. Step 6: Final answer
   x = 1,711.83