Finding the Fourth Proportional to 2,145.02, 3,216.71 and 758.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,145.02 : 3,216.71 = 758.10 : x
2. Step 2: Convert to fraction form
   2,145.02/3,216.71 = 758.10/x
3. Step 3: Cross multiply
   2,145.02x = 3,216.71 × 758.10
4. Step 4: Simplify right side
   2,145.02x = 2,438,584.06
5. Step 5: Solve for x
   x = 2,438,584.06/2,145.02
6. Step 6: Final answer
   x = 1,136.86