Finding the Fourth Proportional to 3,672.82, 5,068.50 and 2,159.99

Step by Step Solution

1. Step 1: Write the proportion equation
   3,672.82 : 5,068.50 = 2,159.99 : x
2. Step 2: Convert to fraction form
   3,672.82/5,068.50 = 2,159.99/x
3. Step 3: Cross multiply
   3,672.82x = 5,068.50 × 2,159.99
4. Step 4: Simplify right side
   3,672.82x = 10,947,915.21
5. Step 5: Solve for x
   x = 10,947,915.21/3,672.82
6. Step 6: Final answer
   x = 2,980.79