Finding the Fourth Proportional to 1,778.70, 2,662.59 and 1,516.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,778.70 : 2,662.59 = 1,516.26 : x
2. Step 2: Convert to fraction form
   1,778.70/2,662.59 = 1,516.26/x
3. Step 3: Cross multiply
   1,778.70x = 2,662.59 × 1,516.26
4. Step 4: Simplify right side
   1,778.70x = 4,037,185.86
5. Step 5: Solve for x
   x = 4,037,185.86/1,778.70
6. Step 6: Final answer
   x = 2,269.73