Finding the Fourth Proportional to 1,984.62, 2,738.42 and 1,285.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,984.62 : 2,738.42 = 1,285.59 : x
2. Step 2: Convert to fraction form
   1,984.62/2,738.42 = 1,285.59/x
3. Step 3: Cross multiply
   1,984.62x = 2,738.42 × 1,285.59
4. Step 4: Simplify right side
   1,984.62x = 3,520,478.94
5. Step 5: Solve for x
   x = 3,520,478.94/1,984.62
6. Step 6: Final answer
   x = 1,773.88