Finding the Fourth Proportional to 1,986.71, 2,741.61 and 1,136

Step by Step Solution

1. Step 1: Write the proportion equation
   1,986.71 : 2,741.61 = 1,136 : x
2. Step 2: Convert to fraction form
   1,986.71/2,741.61 = 1,136/x
3. Step 3: Cross multiply
   1,986.71x = 2,741.61 × 1,136
4. Step 4: Simplify right side
   1,986.71x = 3,114,468.96
5. Step 5: Solve for x
   x = 3,114,468.96/1,986.71
6. Step 6: Final answer
   x = 1,567.65