Finding the Fourth Proportional to 3,098.56, 4,647.83 and 907.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,098.56 : 4,647.83 = 907.31 : x
2. Step 2: Convert to fraction form
   3,098.56/4,647.83 = 907.31/x
3. Step 3: Cross multiply
   3,098.56x = 4,647.83 × 907.31
4. Step 4: Simplify right side
   3,098.56x = 4,217,022.64
5. Step 5: Solve for x
   x = 4,217,022.64/3,098.56
6. Step 6: Final answer
   x = 1,360.96