Finding the Fourth Proportional to 5,657.98, 7,804.74 and 3,981.82

Step by Step Solution

1. Step 1: Write the proportion equation
   5,657.98 : 7,804.74 = 3,981.82 : x
2. Step 2: Convert to fraction form
   5,657.98/7,804.74 = 3,981.82/x
3. Step 3: Cross multiply
   5,657.98x = 7,804.74 × 3,981.82
4. Step 4: Simplify right side
   5,657.98x = 31,077,069.83
5. Step 5: Solve for x
   x = 31,077,069.83/5,657.98
6. Step 6: Final answer
   x = 5,492.61