Finding the Fourth Proportional to 3,191.72, 4,786.02 and 1,111.84

Step by Step Solution

1. Step 1: Write the proportion equation
   3,191.72 : 4,786.02 = 1,111.84 : x
2. Step 2: Convert to fraction form
   3,191.72/4,786.02 = 1,111.84/x
3. Step 3: Cross multiply
   3,191.72x = 4,786.02 × 1,111.84
4. Step 4: Simplify right side
   3,191.72x = 5,321,276.51
5. Step 5: Solve for x
   x = 5,321,276.51/3,191.72
6. Step 6: Final answer
   x = 1,667.22