Finding the Fourth Proportional to 5,657.33, 7,809.82 and 3,980.17

Step by Step Solution

1. Step 1: Write the proportion equation
   5,657.33 : 7,809.82 = 3,980.17 : x
2. Step 2: Convert to fraction form
   5,657.33/7,809.82 = 3,980.17/x
3. Step 3: Cross multiply
   5,657.33x = 7,809.82 × 3,980.17
4. Step 4: Simplify right side
   5,657.33x = 31,084,411.08
5. Step 5: Solve for x
   x = 31,084,411.08/5,657.33
6. Step 6: Final answer
   x = 5,494.54