Finding the Fourth Proportional to 2,964.72, 4,092.88 and 1,917.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,964.72 : 4,092.88 = 1,917.38 : x
2. Step 2: Convert to fraction form
   2,964.72/4,092.88 = 1,917.38/x
3. Step 3: Cross multiply
   2,964.72x = 4,092.88 × 1,917.38
4. Step 4: Simplify right side
   2,964.72x = 7,847,606.25
5. Step 5: Solve for x
   x = 7,847,606.25/2,964.72
6. Step 6: Final answer
   x = 2,647.00