Finding the Fourth Proportional to 3,131.92, 4,693.86 and 1,181.80

Step by Step Solution

1. Step 1: Write the proportion equation
   3,131.92 : 4,693.86 = 1,181.80 : x
2. Step 2: Convert to fraction form
   3,131.92/4,693.86 = 1,181.80/x
3. Step 3: Cross multiply
   3,131.92x = 4,693.86 × 1,181.80
4. Step 4: Simplify right side
   3,131.92x = 5,547,203.75
5. Step 5: Solve for x
   x = 5,547,203.75/3,131.92
6. Step 6: Final answer
   x = 1,771.18