Finding the Fourth Proportional to 5,980.93, 8,971.89 and 1,821.31

Step by Step Solution

1. Step 1: Write the proportion equation
   5,980.93 : 8,971.89 = 1,821.31 : x
2. Step 2: Convert to fraction form
   5,980.93/8,971.89 = 1,821.31/x
3. Step 3: Cross multiply
   5,980.93x = 8,971.89 × 1,821.31
4. Step 4: Simplify right side
   5,980.93x = 16,340,592.98
5. Step 5: Solve for x
   x = 16,340,592.98/5,980.93
6. Step 6: Final answer
   x = 2,732.12