Finding the Fourth Proportional to 2,109.99, 3,166.38 and 1,136.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109.99 : 3,166.38 = 1,136.76 : x
2. Step 2: Convert to fraction form
   2,109.99/3,166.38 = 1,136.76/x
3. Step 3: Cross multiply
   2,109.99x = 3,166.38 × 1,136.76
4. Step 4: Simplify right side
   2,109.99x = 3,599,414.13
5. Step 5: Solve for x
   x = 3,599,414.13/2,109.99
6. Step 6: Final answer
   x = 1,705.89