Finding the Fourth Proportional to 2,833.72, 4,247.70 and 1,191.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,833.72 : 4,247.70 = 1,191.28 : x
2. Step 2: Convert to fraction form
   2,833.72/4,247.70 = 1,191.28/x
3. Step 3: Cross multiply
   2,833.72x = 4,247.70 × 1,191.28
4. Step 4: Simplify right side
   2,833.72x = 5,060,200.06
5. Step 5: Solve for x
   x = 5,060,200.06/2,833.72
6. Step 6: Final answer
   x = 1,785.71