Finding the Fourth Proportional to 2,998.98, 4,498.46 and 807.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,998.98 : 4,498.46 = 807.53 : x
2. Step 2: Convert to fraction form
   2,998.98/4,498.46 = 807.53/x
3. Step 3: Cross multiply
   2,998.98x = 4,498.46 × 807.53
4. Step 4: Simplify right side
   2,998.98x = 3,632,614.87
5. Step 5: Solve for x
   x = 3,632,614.87/2,998.98
6. Step 6: Final answer
   x = 1,211.28