Finding the Fourth Proportional to 1,784.72, 2,681.40 and 1,136.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,784.72 : 2,681.40 = 1,136.72 : x
2. Step 2: Convert to fraction form
   1,784.72/2,681.40 = 1,136.72/x
3. Step 3: Cross multiply
   1,784.72x = 2,681.40 × 1,136.72
4. Step 4: Simplify right side
   1,784.72x = 3,048,001.01
5. Step 5: Solve for x
   x = 3,048,001.01/1,784.72
6. Step 6: Final answer
   x = 1,707.83