Finding the Fourth Proportional to 2,276.61, 3,414.86 and 716.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,276.61 : 3,414.86 = 716.55 : x
2. Step 2: Convert to fraction form
   2,276.61/3,414.86 = 716.55/x
3. Step 3: Cross multiply
   2,276.61x = 3,414.86 × 716.55
4. Step 4: Simplify right side
   2,276.61x = 2,446,904.23
5. Step 5: Solve for x
   x = 2,446,904.23/2,276.61
6. Step 6: Final answer
   x = 1,074.80