Finding the Fourth Proportional to 2,045.88, 3,069.31 and 659.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,045.88 : 3,069.31 = 659.35 : x
2. Step 2: Convert to fraction form
   2,045.88/3,069.31 = 659.35/x
3. Step 3: Cross multiply
   2,045.88x = 3,069.31 × 659.35
4. Step 4: Simplify right side
   2,045.88x = 2,023,749.55
5. Step 5: Solve for x
   x = 2,023,749.55/2,045.88
6. Step 6: Final answer
   x = 989.18