Finding the Fourth Proportional to 1,742.31, 2,404.56 and 996.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,742.31 : 2,404.56 = 996.38 : x
2. Step 2: Convert to fraction form
   1,742.31/2,404.56 = 996.38/x
3. Step 3: Cross multiply
   1,742.31x = 2,404.56 × 996.38
4. Step 4: Simplify right side
   1,742.31x = 2,395,865.24
5. Step 5: Solve for x
   x = 2,395,865.24/1,742.31
6. Step 6: Final answer
   x = 1,375.11