Finding the Fourth Proportional to 2,136.64, 2,949.30 and 1,252.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,136.64 : 2,949.30 = 1,252.72 : x
2. Step 2: Convert to fraction form
   2,136.64/2,949.30 = 1,252.72/x
3. Step 3: Cross multiply
   2,136.64x = 2,949.30 × 1,252.72
4. Step 4: Simplify right side
   2,136.64x = 3,694,647.10
5. Step 5: Solve for x
   x = 3,694,647.10/2,136.64
6. Step 6: Final answer
   x = 1,729.19