Finding the Fourth Proportional to 2,516.61, 3,773.25 and 1,200.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,516.61 : 3,773.25 = 1,200.57 : x
2. Step 2: Convert to fraction form
   2,516.61/3,773.25 = 1,200.57/x
3. Step 3: Cross multiply
   2,516.61x = 3,773.25 × 1,200.57
4. Step 4: Simplify right side
   2,516.61x = 4,530,037.93
5. Step 5: Solve for x
   x = 4,530,037.93/2,516.61
6. Step 6: Final answer
   x = 1,800.05