Finding the Fourth Proportional to 2,091.12, 3,136.98 and 1,116.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,091.12 : 3,136.98 = 1,116.69 : x
2. Step 2: Convert to fraction form
   2,091.12/3,136.98 = 1,116.69/x
3. Step 3: Cross multiply
   2,091.12x = 3,136.98 × 1,116.69
4. Step 4: Simplify right side
   2,091.12x = 3,503,034.20
5. Step 5: Solve for x
   x = 3,503,034.20/2,091.12
6. Step 6: Final answer
   x = 1,675.20