Finding the Fourth Proportional to 2,571.34, 3,549.82 and 1,980.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,571.34 : 3,549.82 = 1,980.58 : x
2. Step 2: Convert to fraction form
   2,571.34/3,549.82 = 1,980.58/x
3. Step 3: Cross multiply
   2,571.34x = 3,549.82 × 1,980.58
4. Step 4: Simplify right side
   2,571.34x = 7,030,702.50
5. Step 5: Solve for x
   x = 7,030,702.50/2,571.34
6. Step 6: Final answer
   x = 2,734.26