Finding the Fourth Proportional to 2,054.28, 2,834.80 and 1,170.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,054.28 : 2,834.80 = 1,170.08 : x
2. Step 2: Convert to fraction form
   2,054.28/2,834.80 = 1,170.08/x
3. Step 3: Cross multiply
   2,054.28x = 2,834.80 × 1,170.08
4. Step 4: Simplify right side
   2,054.28x = 3,316,942.78
5. Step 5: Solve for x
   x = 3,316,942.78/2,054.28
6. Step 6: Final answer
   x = 1,614.65