Finding the Fourth Proportional to 1,619.18, 2,429.49 and 849.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,619.18 : 2,429.49 = 849.50 : x
2. Step 2: Convert to fraction form
   1,619.18/2,429.49 = 849.50/x
3. Step 3: Cross multiply
   1,619.18x = 2,429.49 × 849.50
4. Step 4: Simplify right side
   1,619.18x = 2,063,851.76
5. Step 5: Solve for x
   x = 2,063,851.76/1,619.18
6. Step 6: Final answer
   x = 1,274.63