Finding the Fourth Proportional to 2,130, 3,196.56 and 762

Step by Step Solution

1. Step 1: Write the proportion equation
   2,130 : 3,196.56 = 762 : x
2. Step 2: Convert to fraction form
   2,130/3,196.56 = 762/x
3. Step 3: Cross multiply
   2,130x = 3,196.56 × 762
4. Step 4: Simplify right side
   2,130x = 2,435,778.72
5. Step 5: Solve for x
   x = 2,435,778.72/2,130
6. Step 6: Final answer
   x = 1,143.56