Finding the Fourth Proportional to 2,566.53, 3,849.77 and 618.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,566.53 : 3,849.77 = 618.72 : x
2. Step 2: Convert to fraction form
   2,566.53/3,849.77 = 618.72/x
3. Step 3: Cross multiply
   2,566.53x = 3,849.77 × 618.72
4. Step 4: Simplify right side
   2,566.53x = 2,381,926.60
5. Step 5: Solve for x
   x = 2,381,926.60/2,566.53
6. Step 6: Final answer
   x = 928.07