Finding the Fourth Proportional to 5,774.89, 8,662.25 and 1,392.31

Step by Step Solution

1. Step 1: Write the proportion equation
   5,774.89 : 8,662.25 = 1,392.31 : x
2. Step 2: Convert to fraction form
   5,774.89/8,662.25 = 1,392.31/x
3. Step 3: Cross multiply
   5,774.89x = 8,662.25 × 1,392.31
4. Step 4: Simplify right side
   5,774.89x = 12,060,519.12
5. Step 5: Solve for x
   x = 12,060,519.12/5,774.89
6. Step 6: Final answer
   x = 2,088.44