Finding the Fourth Proportional to 2,566.39, 3,849.59 and 618.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,566.39 : 3,849.59 = 618.59 : x
2. Step 2: Convert to fraction form
   2,566.39/3,849.59 = 618.59/x
3. Step 3: Cross multiply
   2,566.39x = 3,849.59 × 618.59
4. Step 4: Simplify right side
   2,566.39x = 2,381,317.88
5. Step 5: Solve for x
   x = 2,381,317.88/2,566.39
6. Step 6: Final answer
   x = 927.89