Finding the Fourth Proportional to 2,215.48, 3,056.94 and 1,516.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,215.48 : 3,056.94 = 1,516.60 : x
2. Step 2: Convert to fraction form
   2,215.48/3,056.94 = 1,516.60/x
3. Step 3: Cross multiply
   2,215.48x = 3,056.94 × 1,516.60
4. Step 4: Simplify right side
   2,215.48x = 4,636,155.20
5. Step 5: Solve for x
   x = 4,636,155.20/2,215.48
6. Step 6: Final answer
   x = 2,092.62