Finding the Fourth Proportional to 2,490.22, 3,734.72 and 846.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,490.22 : 3,734.72 = 846.72 : x
2. Step 2: Convert to fraction form
   2,490.22/3,734.72 = 846.72/x
3. Step 3: Cross multiply
   2,490.22x = 3,734.72 × 846.72
4. Step 4: Simplify right side
   2,490.22x = 3,162,262.12
5. Step 5: Solve for x
   x = 3,162,262.12/2,490.22
6. Step 6: Final answer
   x = 1,269.87