Finding the Fourth Proportional to 1,811.67, 2,498.76 and 1,181.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,811.67 : 2,498.76 = 1,181.49 : x
2. Step 2: Convert to fraction form
   1,811.67/2,498.76 = 1,181.49/x
3. Step 3: Cross multiply
   1,811.67x = 2,498.76 × 1,181.49
4. Step 4: Simplify right side
   1,811.67x = 2,952,259.95
5. Step 5: Solve for x
   x = 2,952,259.95/1,811.67
6. Step 6: Final answer
   x = 1,629.58