Finding the Fourth Proportional to 6,915.42, 10,373.04 and 1,721.34

Step by Step Solution

1. Step 1: Write the proportion equation
   6,915.42 : 10,373.04 = 1,721.34 : x
2. Step 2: Convert to fraction form
   6,915.42/10,373.04 = 1,721.34/x
3. Step 3: Cross multiply
   6,915.42x = 10,373.04 × 1,721.34
4. Step 4: Simplify right side
   6,915.42x = 17,855,528.67
5. Step 5: Solve for x
   x = 17,855,528.67/6,915.42
6. Step 6: Final answer
   x = 2,581.99