Finding the Fourth Proportional to 5,979.55, 8,970.69 and 1,820.15

Step by Step Solution

1. Step 1: Write the proportion equation
   5,979.55 : 8,970.69 = 1,820.15 : x
2. Step 2: Convert to fraction form
   5,979.55/8,970.69 = 1,820.15/x
3. Step 3: Cross multiply
   5,979.55x = 8,970.69 × 1,820.15
4. Step 4: Simplify right side
   5,979.55x = 16,327,947.45
5. Step 5: Solve for x
   x = 16,327,947.45/5,979.55
6. Step 6: Final answer
   x = 2,730.63