Finding the Fourth Proportional to 2,718.32, 4,076.88 and 1,074.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,718.32 : 4,076.88 = 1,074.56 : x
2. Step 2: Convert to fraction form
   2,718.32/4,076.88 = 1,074.56/x
3. Step 3: Cross multiply
   2,718.32x = 4,076.88 × 1,074.56
4. Step 4: Simplify right side
   2,718.32x = 4,380,852.17
5. Step 5: Solve for x
   x = 4,380,852.17/2,718.32
6. Step 6: Final answer
   x = 1,611.60