Finding the Fourth Proportional to 2,516.57, 3,777.18 and 1,284.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,516.57 : 3,777.18 = 1,284.89 : x
2. Step 2: Convert to fraction form
   2,516.57/3,777.18 = 1,284.89/x
3. Step 3: Cross multiply
   2,516.57x = 3,777.18 × 1,284.89
4. Step 4: Simplify right side
   2,516.57x = 4,853,260.81
5. Step 5: Solve for x
   x = 4,853,260.81/2,516.57
6. Step 6: Final answer
   x = 1,928.52