Finding the Fourth Proportional to 2,167.48, 3,247.62 and 1,191.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,167.48 : 3,247.62 = 1,191.88 : x
2. Step 2: Convert to fraction form
   2,167.48/3,247.62 = 1,191.88/x
3. Step 3: Cross multiply
   2,167.48x = 3,247.62 × 1,191.88
4. Step 4: Simplify right side
   2,167.48x = 3,870,773.33
5. Step 5: Solve for x
   x = 3,870,773.33/2,167.48
6. Step 6: Final answer
   x = 1,785.84