Finding the Fourth Proportional to 2,659.73, 3,670.77 and 1,916.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,659.73 : 3,670.77 = 1,916.15 : x
2. Step 2: Convert to fraction form
   2,659.73/3,670.77 = 1,916.15/x
3. Step 3: Cross multiply
   2,659.73x = 3,670.77 × 1,916.15
4. Step 4: Simplify right side
   2,659.73x = 7,033,727.58
5. Step 5: Solve for x
   x = 7,033,727.58/2,659.73
6. Step 6: Final answer
   x = 2,644.53