Finding the Fourth Proportional to 2,128.82, 3,193.02 and 742.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128.82 : 3,193.02 = 742.16 : x
2. Step 2: Convert to fraction form
   2,128.82/3,193.02 = 742.16/x
3. Step 3: Cross multiply
   2,128.82x = 3,193.02 × 742.16
4. Step 4: Simplify right side
   2,128.82x = 2,369,739.71
5. Step 5: Solve for x
   x = 2,369,739.71/2,128.82
6. Step 6: Final answer
   x = 1,113.17