Finding the Fourth Proportional to 3,722.67, 5,136.95 and 2,129.00

Step by Step Solution

1. Step 1: Write the proportion equation
   3,722.67 : 5,136.95 = 2,129.00 : x
2. Step 2: Convert to fraction form
   3,722.67/5,136.95 = 2,129.00/x
3. Step 3: Cross multiply
   3,722.67x = 5,136.95 × 2,129.00
4. Step 4: Simplify right side
   3,722.67x = 10,936,530.22
5. Step 5: Solve for x
   x = 10,936,530.22/3,722.67
6. Step 6: Final answer
   x = 2,937.82