Finding the Fourth Proportional to 2,040.89, 3,060.63 and 807.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,040.89 : 3,060.63 = 807.98 : x
2. Step 2: Convert to fraction form
   2,040.89/3,060.63 = 807.98/x
3. Step 3: Cross multiply
   2,040.89x = 3,060.63 × 807.98
4. Step 4: Simplify right side
   2,040.89x = 2,472,912.52
5. Step 5: Solve for x
   x = 2,472,912.52/2,040.89
6. Step 6: Final answer
   x = 1,211.69