Finding the Fourth Proportional to 2,054.88, 2,836.02 and 1,170.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,054.88 : 2,836.02 = 1,170.78 : x
2. Step 2: Convert to fraction form
   2,054.88/2,836.02 = 1,170.78/x
3. Step 3: Cross multiply
   2,054.88x = 2,836.02 × 1,170.78
4. Step 4: Simplify right side
   2,054.88x = 3,320,355.50
5. Step 5: Solve for x
   x = 3,320,355.50/2,054.88
6. Step 6: Final answer
   x = 1,615.84