Finding the Fourth Proportional to 5,258.58, 7,892.73 and 2,663.34

Step by Step Solution

1. Step 1: Write the proportion equation
   5,258.58 : 7,892.73 = 2,663.34 : x
2. Step 2: Convert to fraction form
   5,258.58/7,892.73 = 2,663.34/x
3. Step 3: Cross multiply
   5,258.58x = 7,892.73 × 2,663.34
4. Step 4: Simplify right side
   5,258.58x = 21,021,023.52
5. Step 5: Solve for x
   x = 21,021,023.52/5,258.58
6. Step 6: Final answer
   x = 3,997.47