Finding the Fourth Proportional to 2,091.47, 3,136.98 and 630.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,091.47 : 3,136.98 = 630.59 : x
2. Step 2: Convert to fraction form
   2,091.47/3,136.98 = 630.59/x
3. Step 3: Cross multiply
   2,091.47x = 3,136.98 × 630.59
4. Step 4: Simplify right side
   2,091.47x = 1,978,131.35
5. Step 5: Solve for x
   x = 1,978,131.35/2,091.47
6. Step 6: Final answer
   x = 945.81