Finding the Fourth Proportional to 1,982.50, 2,971.59 and 885.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,982.50 : 2,971.59 = 885.31 : x
2. Step 2: Convert to fraction form
   1,982.50/2,971.59 = 885.31/x
3. Step 3: Cross multiply
   1,982.50x = 2,971.59 × 885.31
4. Step 4: Simplify right side
   1,982.50x = 2,630,778.34
5. Step 5: Solve for x
   x = 2,630,778.34/1,982.50
6. Step 6: Final answer
   x = 1,327.00