Finding the Fourth Proportional to 5,004.78, 7,507.31 and 1,717.83

Step by Step Solution

1. Step 1: Write the proportion equation
   5,004.78 : 7,507.31 = 1,717.83 : x
2. Step 2: Convert to fraction form
   5,004.78/7,507.31 = 1,717.83/x
3. Step 3: Cross multiply
   5,004.78x = 7,507.31 × 1,717.83
4. Step 4: Simplify right side
   5,004.78x = 12,896,282.34
5. Step 5: Solve for x
   x = 12,896,282.34/5,004.78
6. Step 6: Final answer
   x = 2,576.79