Finding the Fourth Proportional to 5,729.80, 8,592.52 and 1,980.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,729.80 : 8,592.52 = 1,980.50 : x
2. Step 2: Convert to fraction form
   5,729.80/8,592.52 = 1,980.50/x
3. Step 3: Cross multiply
   5,729.80x = 8,592.52 × 1,980.50
4. Step 4: Simplify right side
   5,729.80x = 17,017,485.86
5. Step 5: Solve for x
   x = 17,017,485.86/5,729.80
6. Step 6: Final answer
   x = 2,970.00