Finding the Fourth Proportional to 2,964.08, 4,089.72 and 1,915.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,964.08 : 4,089.72 = 1,915.94 : x
2. Step 2: Convert to fraction form
   2,964.08/4,089.72 = 1,915.94/x
3. Step 3: Cross multiply
   2,964.08x = 4,089.72 × 1,915.94
4. Step 4: Simplify right side
   2,964.08x = 7,835,658.14
5. Step 5: Solve for x
   x = 7,835,658.14/2,964.08
6. Step 6: Final answer
   x = 2,643.54