Finding the Fourth Proportional to 1,982.58, 2,735.98 and 1,285.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,982.58 : 2,735.98 = 1,285.18 : x
2. Step 2: Convert to fraction form
   1,982.58/2,735.98 = 1,285.18/x
3. Step 3: Cross multiply
   1,982.58x = 2,735.98 × 1,285.18
4. Step 4: Simplify right side
   1,982.58x = 3,516,226.78
5. Step 5: Solve for x
   x = 3,516,226.78/1,982.58
6. Step 6: Final answer
   x = 1,773.56